Chapter 17/18: Energy (EDIT)

The Earth revolves around (circles) the sun once about every

• 24 hours

• 7 days

• 30 days

• 365 days

The Earth spins on its axis (rotates) once about every

• 24 hours

• 7 days

• 30 days

• 365 days

The Earth has seasons because

• During one part of the year the northern part of the Earth is tilted toward the sun

• During one part of the year the southern part of the Earth is tilted toward the sun

• When a part of the Earth is tilted toward the sun that part gets more direct sunlight

• All these fact are true and are important parts of the answer to the question

Some of the Earth's wind patterns are the result of

• The coriolis effect

• Differences in heating within the atmosphere

• Both the coriolis effect and differences in atmospheric heating result in wind

• Neither of these things are related to wind at all

A renewable energy resource is

• A resource that is being used at a rate faster than it can be replenished

• A resource that is available in infinite supply

• A resource that is based on fossil fuel use

• A resource that can be replaced as quickly as it is used, or is infinite in availability

A nonrenewable energy resource is

• A resource that is being used at a rate faster than it can be replenished

• A resource that can be recreated instantly

• A resource that is based on use of hydroelectric dams

• A resource that can be replaced as quickly as it is used

Fossil fuels are made from

• Parts of the Earth's mantle

• The remains of living things that have been buried for millions of years

• Recycled aluminum cans

• Waste material from harvesting field crops like beans, corn, and cotton

This fossil fuel is solid, burns ‘dirty', and is fairly easy to extract from the ground

• Coal

• Oil

• Natural gas

• Red Bull

This fossil fuel is often extracted by a method called 'fracking' in which water is pumped into the ground, forcing the rocks apart

• Coal

• Oil

• Natural gas

• Red Bull

This fossil fuel is refined to make gasoline commonly used in transportation

• Coal

• Oil

• Natural gas

• Red Bull