Ever Changing Earth

What is the primary cause of acid rain?

• Increase in carbon dioxide

• Burning of fossil fuels containing sulfur impurities

• Volcanic eruptions

• Deforestation

What is largely believed to cause climate change?

• Increase in sulfur dioxide

• Increase in carbon dioxide

• Decrease in oxygen levels

• Increase in nitrogen levels

What is the process called when a substance burns in oxygen, releasing heat and light?

• Combustion

• Oxidation

• Reduction

• Photosynthesis

What is the Earth's core primarily made of?

• Iron and nickel

• Carbon and oxygen

• Silicon and magnesium

• Hydrogen and helium

What is the outer core of the Earth mostly made up of?

• Solid iron

• Molten iron and nickel

• Solid nickel

• Molten silicon and magnesium

What happens to the denser plate at a destructive plate boundary?

• It rises above the other plate

• It slides past the other plate

• It is pushed beneath the other plate

• It remains stationary

What is the thinnest and outermost layer of the planet made up of various types of solid rock?

• Mantle

• Core

• Earth's crust

• Plate boundary

What are non-renewable natural fuels formed from the remains of living organisms called?

• Greenhouse gases

• Fossil fuels

• Incomplete combustion

• Photosynthesis

What is the increase in the Earth's temperature due to the enhanced greenhouse effect called?

• Global warming

• Greenhouse effect

• Plate tectonics theory

• Respiration

What is the increase in the temperature of the Earth's atmosphere due to greenhouse gases trapping infra-red radiation from the surface called?

• Global warming

• Greenhouse effect

• Plate boundary

• Incomplete combustion