4 - Geology and Coastal Environments

Question 1

What are the three main types of rocks?

Answer 1

Igneous, sedimentary, and metamorphic.

Question 2

What is the difference between physical and chemical weathering?

Answer 2

Physical weathering involves the mechanical breakdown of rocks, while chemical weathering involves the decay of minerals through chemical reactions.

Question 3

What are the four layers of the Earth?

Answer 3

Crust, mantle, outer core, inner core.

Question 4

What is the rock cycle?

Answer 4

The rock cycle is the continuous process where rocks change from one type to another through melting, cooling, weathering, and pressure.

Question 5

How do metamorphic rocks form?

Answer 5

Metamorphic rocks form when igneous or sedimentary rocks are subjected to heat and pressure, causing them to change in structure.

Question 6

What is the importance of soil in an ecosystem?

Answer 6

Soil supports plant growth, decomposes organic matter, and recycles nutrients, playing a vital role in maintaining ecosystems.