CAEC Earth and Space Science 5

Question 1

Which energy resource is renewable?

Accepted Answer

Hydroelectric power

Answer

Hydroelectricity uses flowing water replenished by the water cycle, and it is a major power source in Quebec and B.C.

Question 2

Groundwater is stored in porous, permeable rock layers called:

Accepted Answer

Aquifers

Answer

An aquifer is an underground layer of rock or sediment that holds and transmits water.

Question 3

A long ridge of unsorted sediment left at the edge of a melted glacier is called a:

Accepted Answer

Moraine

Answer

Moraines are deposits of till pushed or dropped by glaciers.

Question 4

Which scenario best shows erosion rather than weathering?

Accepted Answer

A river carrying sand downstream to a delta

Answer

Erosion is the movement of weathered material by agents like water, wind, or ice.

Question 5

Scientists use radiometric dating of rocks mainly to determine:

Accepted Answer

The absolute age of the rock in years

Answer

Measuring the decay of radioactive isotopes with known half-lives gives an absolute age.

(CAEC) Canadian Adult Education Credential Practice Test