Earth Science

Pollutants dumped into the rivers and streams eventually find their way to __________.

• the ocean
• the atmosphere
• the water table
• underground water

The average temperature of the Earth’s Atmosphere may rise as a result of _____________.

• Global warming
• Greenhouse effect
• Land pollution
• Air pollution

Many __________ energy sources are being developed to replace fossil fuels.

• non- renewable
• alternative
• expensive
• renewable

Some endangered species of plants in tropical rain forests may be sources of _____________.

• fossil fuels
• medicine
• accessories
• hazardous waste

The following are causes of species extinction except for.

• lack of food
• Reforestation
• hunting
• global warming

What does erosion do?

• Break down rock
• changes rock chemically
• changes sediment in rock
• moves broken pieces of rock, or sediment, from one place to another

Which feature forms from wind deposition?

• flood plains
• sand dunes
• deltas
• moraines