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Test Prep PSAT Exam Questions
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Total Questions: 1265
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Updated On: Apr 25, 2025
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Question 1
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If y = 4 and 6y = 10z + y, then z =?
Answer: D
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If y = 4 and 6y = 10z + y, then z =?
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Question 2
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A right triangle has legs of 15m and 20m. What is the length of the hypotenuse?
Answer: C
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A right triangle has legs of 15m and 20m. What is the length of the hypotenuse?
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Question 3
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The Amazonian wilderness harbors the greatest number of species on this planet and is an irreplaceable
resource for present and future generations. Amazonia is crucial for maintaining global climate and genetic
resources, and its forest and rivers provide vital sources of food, building materials, pharmaceuticals, and water
needed by wildlife and humanity.
The Los Amigos watershed in the state of Madre de Dios, southeastern Peru, is representative of the pristine
lowland moist forest once found throughout most of upper Amazonian South America. Threats to tropical
forests occur in the form of fishing, hunting, gold mining, timber extraction, impending road construction, and
slash-and-burn agriculture.
The Los Amigos watershed, consisting of 1.6 million hectares (3.95 million acres), still offers the increasingly
scarce opportunity to study rainforest as it was before the disruptive encroachment of modern human
civilization. Because of its relatively pristine condition and the immediate need to justify it as a conservation
zone, this area deserves intensive, long-term projects aimed at botanical training, ecotourism, biological
inventory, and information synthesis.
On July 24, 2001, the government of Peru and the Amazon Conservation Association signed a contractual
agreement creating the first long-term permanently renewable conservation concession. To our knowledge this
is the first such agreement to be implemented in the world. The conservation concession protects 340,000
acres of old-growth Amazonian forest in the Los Amigos watershed, which is located in southeastern Peru. This
watershed protects the eastern flank of Manu National Park and is part of the lowland forest corridor that links it
to Bahuaja-Sonene National Park. The Los Amigos conservation concession will serve as a mechanism for the
development of a regional center of excellence in natural forest management and biodiversity science.
Several major projects are being implemented at the Los Amigos Conservation Area. Louise Emmons is
initiating studies of mammal diversity and ecology in the Los Amigos area. Other projects involve studies of the
diversity of arthropods, amphibians, reptiles, and birds. Robin Foster has conducted botanical studies at Los
Amigos, resulting in the labeling of hundreds of plant species along two kilometers of trail in upland and lowland
forest. Michael Goulding is leading a fisheries and aquatic ecology program, which aims to document the
diversity of fish, their ecologies, and their habitats in the Los Amigos area and the Madre de Dios watershed in
general. With support from the Amazon Conservation Association, and in collaboration with U.S. and Peruvian
colleagues, the Botany of the Los Amigos project has been initiated.
At Los Amigos, we are attempting to develop a system of preservation, sustainability, and scientific research; a
marriage between various disciplines, from human ecology to economic botany, product marketing to forest
management. The complexity of the ecosystem will best be understood through a multidisciplinary approach,
and improved understanding of the complexity will lead to better management. The future of these forests will
depend on sustainable management and development of alternative practices and products that do not require irreversible destruction. The botanical project will provide a foundation of information that is essential to other
programs at Los Amigos. By combining botanical studies with fisheries and mammology, we will better
understand plant/animal interactions. By providing names, the botanical program will facilitate accurate
communication about plants and the animals that use them. Included in this scenario are humans, as we will
dedicate time to people-plant interactions in order to learn what plants are used by people in the Los Amigos
area, and what plants could potentially be used by people. To be informed, we must develop knowledge.
To develop knowledge, we must collect, organize, and disseminate information. In this sense, botanical
information has conservation value. Before we can use plant-based products from the forest, we must know
what species are useful and we must know their names. We must be able to identify them, to know where they
occur in the forest, how many of them exist, how they are pollinated and when they produce fruit (or other
useful products). Aside from understanding the species as they occur locally at Los Amigos, we must have
information about their overall distribution in tropical America in order to better understand and manage the
distribution, variation, and viability of their genetic diversity. This involves a more complete understanding of the
species through studies in the field and herbarium.
The author’s botanical project involves all of the following EXCEPT
Answer: A
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The Amazonian wilderness harbors the greatest number of species on this planet and is an irreplaceable
resource for present and future generations. Amazonia is crucial for maintaining global climate and genetic
resources, and its forest and rivers provide vital sources of food, building materials, pharmaceuticals, and water
needed by wildlife and humanity.
The Los Amigos watershed in the state of Madre de Dios, southeastern Peru, is representative of the pristine
lowland moist forest once found throughout most of upper Amazonian South America. Threats to tropical
forests occur in the form of fishing, hunting, gold mining, timber extraction, impending road construction, and
slash-and-burn agriculture.
The Los Amigos watershed, consisting of 1.6 million hectares (3.95 million acres), still offers the increasingly
scarce opportunity to study rainforest as it was before the disruptive encroachment of modern human
civilization. Because of its relatively pristine condition and the immediate need to justify it as a conservation
zone, this area deserves intensive, long-term projects aimed at botanical training, ecotourism, biological
inventory, and information synthesis.
On July 24, 2001, the government of Peru and the Amazon Conservation Association signed a contractual
agreement creating the first long-term permanently renewable conservation concession. To our knowledge this
is the first such agreement to be implemented in the world. The conservation concession protects 340,000
acres of old-growth Amazonian forest in the Los Amigos watershed, which is located in southeastern Peru. This
watershed protects the eastern flank of Manu National Park and is part of the lowland forest corridor that links it
to Bahuaja-Sonene National Park. The Los Amigos conservation concession will serve as a mechanism for the
development of a regional center of excellence in natural forest management and biodiversity science.
Several major projects are being implemented at the Los Amigos Conservation Area. Louise Emmons is
initiating studies of mammal diversity and ecology in the Los Amigos area. Other projects involve studies of the
diversity of arthropods, amphibians, reptiles, and birds. Robin Foster has conducted botanical studies at Los
Amigos, resulting in the labeling of hundreds of plant species along two kilometers of trail in upland and lowland
forest. Michael Goulding is leading a fisheries and aquatic ecology program, which aims to document the
diversity of fish, their ecologies, and their habitats in the Los Amigos area and the Madre de Dios watershed in
general. With support from the Amazon Conservation Association, and in collaboration with U.S. and Peruvian
colleagues, the Botany of the Los Amigos project has been initiated.
At Los Amigos, we are attempting to develop a system of preservation, sustainability, and scientific research; a
marriage between various disciplines, from human ecology to economic botany, product marketing to forest
management. The complexity of the ecosystem will best be understood through a multidisciplinary approach,
and improved understanding of the complexity will lead to better management. The future of these forests will
depend on sustainable management and development of alternative practices and products that do not require irreversible destruction. The botanical project will provide a foundation of information that is essential to other
programs at Los Amigos. By combining botanical studies with fisheries and mammology, we will better
understand plant/animal interactions. By providing names, the botanical program will facilitate accurate
communication about plants and the animals that use them. Included in this scenario are humans, as we will
dedicate time to people-plant interactions in order to learn what plants are used by people in the Los Amigos
area, and what plants could potentially be used by people. To be informed, we must develop knowledge.
To develop knowledge, we must collect, organize, and disseminate information. In this sense, botanical
information has conservation value. Before we can use plant-based products from the forest, we must know
what species are useful and we must know their names. We must be able to identify them, to know where they
occur in the forest, how many of them exist, how they are pollinated and when they produce fruit (or other
useful products). Aside from understanding the species as they occur locally at Los Amigos, we must have
information about their overall distribution in tropical America in order to better understand and manage the
distribution, variation, and viability of their genetic diversity. This involves a more complete understanding of the
species through studies in the field and herbarium.
The author’s botanical project involves all of the following EXCEPT
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Question 4
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Adapted from “Humming-Birds: As Illustrating the Luxuriance of Tropical Nature” in Tropical Nature, and Other
Essays by Alfred Russel Wallace (1878)
The food of hummingbirds has been a matter of much controversy. All the early writers down to Buffon believed
that they lived solely on the nectar of flowers, but since that time, every close observer of their habits maintains
that they feed largely, and in some cases wholly, on insects. Azara observed them on the La Plata in winter
taking insects out of the webs of spiders at a time and place where there were no flowers. Bullock, in Mexico,
declares that he saw them catch small butterflies, and that he found many kinds of insects in their stomachs.
Waterton made a similar statement. Hundreds and perhaps thousands of specimens have since been
dissected by collecting naturalists, and in almost every instance their stomachs have been found full of insects,
sometimes, but not generally, mixed with a proportion of honey. Many of them in fact may be seen catching
gnats and other small insects just like fly-catchers, sitting on a dead twig over water, darting off for a time in the
air, and then returning to the twig. Others come out just at dusk, and remain on the wing, now stationary, now
darting about with the greatest rapidity, imitating in a limited space the evolutions of the goatsuckers, and
evidently for the same end and purpose. Mr. Gosse also remarks, “All the hummingbirds have more or less the
habit, when in flight, of pausing in the air and throwing the body and tail into rapid and odd contortions. This is
most observable in the Polytmus, from the effect that such motions have on the long feathers of the tail. That
the object of these quick turns is the capture of insects, I am sure, having watched one thus engaged pretty
close to me.”
How does the quotation from Mr. Gosse relate to the evidence provided by other scientists earlier in the
passage?
Answer: A
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Adapted from “Humming-Birds: As Illustrating the Luxuriance of Tropical Nature” in Tropical Nature, and Other
Essays by Alfred Russel Wallace (1878)
The food of hummingbirds has been a matter of much controversy. All the early writers down to Buffon believed
that they lived solely on the nectar of flowers, but since that time, every close observer of their habits maintains
that they feed largely, and in some cases wholly, on insects. Azara observed them on the La Plata in winter
taking insects out of the webs of spiders at a time and place where there were no flowers. Bullock, in Mexico,
declares that he saw them catch small butterflies, and that he found many kinds of insects in their stomachs.
Waterton made a similar statement. Hundreds and perhaps thousands of specimens have since been
dissected by collecting naturalists, and in almost every instance their stomachs have been found full of insects,
sometimes, but not generally, mixed with a proportion of honey. Many of them in fact may be seen catching
gnats and other small insects just like fly-catchers, sitting on a dead twig over water, darting off for a time in the
air, and then returning to the twig. Others come out just at dusk, and remain on the wing, now stationary, now
darting about with the greatest rapidity, imitating in a limited space the evolutions of the goatsuckers, and
evidently for the same end and purpose. Mr. Gosse also remarks, “All the hummingbirds have more or less the
habit, when in flight, of pausing in the air and throwing the body and tail into rapid and odd contortions. This is
most observable in the Polytmus, from the effect that such motions have on the long feathers of the tail. That
the object of these quick turns is the capture of insects, I am sure, having watched one thus engaged pretty
close to me.”
How does the quotation from Mr. Gosse relate to the evidence provided by other scientists earlier in the
passage?
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Question 5
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On a map, 1/3 inch equals 15 miles. The distance between two towns on a map is 3 2/3 inches. How many
miles are actually between the two towns?
Answer: A
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On a map, 1/3 inch equals 15 miles. The distance between two towns on a map is 3 2/3 inches. How many
miles are actually between the two towns?