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100
In 1962, Rachel Carson published Silent Spring. This widely read book reported onthe harmful effects of insecticides and weed killers used in agriculture. Carson argued that these chemicals threatened the safety of food, water, individual species, and overall ecological balance. Which of the following outcomes was MOST likely a resulting effect on society after reading this book? *A rapid decrease in the number of species raised on farms. *The development of a public awareness of the impact of poisons on the environment. *An increase in the number of companies producing pesticides. *The merging of the Department of Agriculture and the Department of Energy
What is "The development of a public awareness of the impact of poisons on the environment."
100
Which of the following tools of modern agriculture is MOST LIKELY to increase the erosion of topsoil? *Effective chemical fertilizers. *Improved pest management. *Efficient mechanical harvesters. *Genetically engineered crops.
What is "Efficient mechanical harvesters."
100
A student explains that most marine plants are found near the surface of the ocean because the ocean floor does not provide enough minerals for plants. Which of the following facts is the greatest weakness of the student's explanation? *In the deepest part of the ocean, there is very little light. *Many marine animals are also found near the surface of the ocean. *Deep-water vents on the ocean floors heat up the nearby water. *Many plants are found on the ocean floor in the shallows close to shore.
What is "Many plants are found on the ocean floor in the shallows close to shore."
100
A student plants four carrot seeds in four pots. One pot is filled with sand, another has clay, a third has loam, and the last holds rocky dirt. The student places each pot on the same windowsill and gives each plant the same amount of water. Each plant receives an equal amount of fertilizer. What question could the student try to answer using this experimental setup?
What is "How does soil type affect carrot growth?"
100
Each year, for many years, a farmer plants wheat in a field. Planting the same crop over and over again is MOST likely to lead to — *ecological succession *deforestation *resource depletion *mutation
What is "resource depletion."
200
Which of the following strategies will BEST help conserve trees that are used to make paper pulp? *Find new forests to use for making paper. *Increase demand for recycled paper products. *Plant new trees when the old ones have been cut down. *Reduce the cost of paper products made from new pulp.
What is "Increase demand for recycled paper products."
200
Scientists often study examples in nature when designing new technology. A scientist studies a snail that lives on the ocean floor to learn why water flows smoothly over its shell. What the scientist learns will be MOST useful to a person who is designing — *radio gear for an oil tanker. *a new fuel for racing boats *the shape of a submarine *a light but strong sail
What is "the shape of a submarine."
200
Sharks adapted to the salty seawater environment by developing a — liver, rectal gland, swim bladder, or a hypothalamus
What is "swim bladder."
200
The role of a pioneer species in primary succession is to change a bare habitat into one that is suitable for other organisms. A species that is responsible for primary succession in an ecosystem is MOST likely able to — Hint: What process must take place in order to produce oxygen and what carries out this process?
What is "photosynthesis."
200
Bacteria break down organic material from animals and plants and release carbon dioxide back into the air. What role do bacteria play in the environment?
What is "decomposer."
300
The paving of open land with asphalt, concrete, and other waterproof materials seems to increase the pollution of nearby bodies of water. The increase is greater in areas that have more precipitation and more traffic. This is a long-term increase that lasts long after the construction is finished. Which of the following BEST explains the increase in pollution? *Pollution is absorbed from the soil into the pavement and runs off into rivers. *Pollutants running over pavement wash into rivers instead of filtering through soil. *Polluted rain soaks through asphalt and concrete into the soil. *Pollutants in the pavement dissolve in rain and are carried into groundwater.
What is "Pollutants running over pavement wash into rivers instead of filtering through the soil."
300
Which type of organism is found at the top of an energy pyramid representing an ecosystem?
What is "consumer."
300
Which of the following is the MOST likely negative effect of damming rivers to supply hydroelectric energy? *Increased fossil fuel costs. *Loss of fish habitat. *Decreased use of electricity. *Higher levels of air pollution.
What is "Loss of fish habitat."
300
Which of the following activities is MOST likely to lead to global warming? *The wearing away of mountains over time due to weathering. *The reduction in greenhouse gases in the atmosphere. *The change in ocean currents due to El Niño. *The destruction of rainforests.
What is "The destruction of rainforests."
300
Which is the BEST example of a natural cause of population decline in an ecosystem? *Air Pollution *Strip Mining *Pesticides *Disease
What is "Disease."
400
Some animals are capable of making noises that cannot be heard by humans. These noises can be used to communicate or to help an animal navigate. Name an animal with a similar adaptation.
What is "bat, dolphin, etc."
400
Plants use different compounds to complete the process of photosynthesis. What do plants give off as a waste product during photosynthesis?
What is "oxygen."
400
A gardener is using an electric lamp that is designed to provide enough light for rosebushes to grow in a greenhouse. What should the gardener compare the growth of his rosebush with in order to determine how well the lamp works? Hint: What do all plants need to grow?
What is "A similar rosebush grown under sunlight."
400
Outdated, coal-burning power plants are one of the largest sources of sulfur dioxide emissions. If these power plants were modernized, how would the environment change? *Less acid rain and less air pollution would occur. *More acid rain and less air pollution would occur. *Less acid rain and more air pollution would occur. *More acid rain and more air pollution would occur.
What is "Less acid rain and less air pollution would occur."
400
Deep-diving submarines have helped scientists learn that photosynthesis does not take place in the deeper parts of the ocean. Why does photosynthesis not occur very deep in the ocean? Hint: Remember what is needed for photosynthesis to take place.
What is "There is no sunlight."
500
Two groups in Mrs. Carter's science class made presentations about forest information they had researched. The first group reported that some types of fungi provide water and nutrients to a tree's roots. The second group reported that forest rodents spread fungi spores to allow for spore reproduction. What conclusion can be drawn from the information presented by these two groups? *Fungi cause disease in rodents in the forest. *Rodents need to be removed from the forest. *Having diverse organisms can spread disease in forests. *Having diverse organisms benefits the health of a forest.
What is "Having diverse organisms benefits the health of a forest."
500
Increased competition with sparrows and starlings for food and nesting sites are thought to be the cause of the Eastern bluebird's population decline. Which MOST LIKELY caused this increase in competition? *Shorter growing seasons. *The addition of birdhouses. *Changing weather patterns. *The removal of suitable habitats.
What is "The removal of suitable habitats."
500
Scientists in Mississippi have discovered that coyotes, bobcats, and raccoons hunt wild turkeys. Which of the following explains the relationship between these animals? *The turkey is the producer for the three types of predators. *The three predators help keep the turkey population controlled. *The turkey population will not survive with three species hunting it. *There are three producers in the food web, and the turkey is a consumer.
What is "The three predators help keep the turkey population controlled."
500
Many years ago, tree-climbing, leaf-eating iguanas migrated from the mainland of South America to the Galapagos Islands. The only food available was algae that grew on the rocks in the water near shore. Scientists believe that the iguanas that survived were those that could swim well, cling to slippery rocks with large claws, and eat a new diet. What type of adaptation is this? *Crossbreeding *Natural Selection *Selective Breeding *Occasional Mutation
What is "Natural Selection."
500
A woodland is cut down so a shopping center and many new houses can be built over the next two years. What will MOST LIKELY occur in the local ecosystem in five years? *Wildlife will compete less for food. *More species of birds will live there. *Water levels will be lower when it rains. *Rain will wash more pollution into creeks.
What is "Rain will wash more pollution into creeks."