Earth

The San Andreas Fault is found in California. It lies where the Pacific Plate slides past the North American Plate. What catastrophic event occurs as a result of sliding plates?

• erosion

• volcano

• earthquake

• tornado

Which of these causes movement in the lithospheric plates that make up the Earth's crust?

• pressure from glaciers

• movement in the mantle

• wind and ocean currents

• rotation of the Earth

Which hypothesis states that continents slowly moved to their present positions on Earth?

• Seafloor Spreading

• Continental Drift

• Subduction

• erosion

The diagram represents a cross section of the Earth.

Which part represents the mantle of the Earth?

• A

• B

• C

• D

What type of radiation is trapped on the earth's surface by the greenhouse effect?

• x-rays

• gamma rays

• ultraviolet rays

• infrared rays

Which of the following adds oxygen to the atmosphere?

• forest fires

• photosynthesis

• weathering of rocks

• life processes of animals

Carbon dioxide is a gas that naturally occurs in small amounts in the atmosphere. During the past century, human activity has slowly increased the level of carbon dioxide. What effect could this have on Earth?

• increased strength of earthquakes

• change in speed of Earth's orbit

• decrease in number of deserts

• change in climate patterns

Climate is the pattern of __________ in an area over many years.

• plants

• rain

• sun

• weather

What form of energy transfer heats Earth's surface?

• radiation

• conduction

• convection

• recycling

A rift valley is evidence of which kind of plate boundary?

• transform

• uniform

• convergent

• divergent