Benchmark review #4 Energy renewable

Some bacteria, fungi, and insects can decompose other organisms. Which best describes the role of the insect in the decomposition process?

• insects help break down organic material.

• insects are the final step in the nutrient cycle.

• insects provide the nitrogen needed for producers

• insects consume fungi and bacteria to produce carbon.

A large number of species on Earth became extinct during a short time period about 65 million years ago. Based on this pattern of extinction, which is the most likely cause?

• gradual climate change

• continued climate stability

• sudden global climate change

• gradual ecosystem succession

Which would most likely happen to a local population of owls if their food source of field mice were eliminated?

• The owls would immediately starve to death.

• The owls would prey on another similar animal as food source.

• The owls would begin eating berries found in the same habitat area.

• The owls would live off stored fat reserves until mice returned to the area.

Which is mostly likely a consequence of using wind farms for energy production?

• air popultion

• overuse of metal resources

• disruption of bird migrations

• increased weathering and erosion

Which is most impacted when transforming solar energy into electricity?

• land use

• air quality

• water quality

• weather conditions

Which environmental factor is most associated with extensive deforestation of the rain forest?

• increase in soil erosion

• decrease in global warming

• increase in available ground water

• decrease in atmospheric carbon dioxide

Which will most likely be a consequence as fossil fuel reserves are depleted?

• pollution will increase

• the cost of gasoline will increase

• Dependence on renewable energy will decrease.

• The demand for energy production will decrease

Why do lawmakers have so much to consider when debating effective energy policies?

• Petroleum is the ideal fuel source, as its use has the least impact on the environment.

• Nuclear energy is approved by many, because it is the least risky but cost the most to produce.

• Hydroelectric power is most useful to the largest number of people and has not effect on the environment.

• Different ways of distributing energy have different short-term and long-term environmental consequences.

which best describes a negative consequence of cutting down large areas of rain forest?

• an increase in rain fall in the areas

• a decrease in carbon dioxide levels in the aarea

• the contamination of soil and water in the areas

• a decrease in the habitats of many species of plant and animals.

A hydroelectric dam produces renewable energy for the local are. Which best explains why more hydroelectric dams are not built?

• The dam causes air population.

• The dam pollutes the water surrounding the area.

• The dam disrupts the river wildlife and ecosystem.

• The dam disrupts river flow, and the river runs out of water.