Coasts - Weathering erosion & waves

The natural chemical or physical processes that weaken and breaks down rock on Earth's surface.

• weathering

• erosion

• deposition

• transportation

What is biological weathering

• The rock is broken down by the action of water freezing and melting (freeze thaw weathering)

• The rock is broken down by the action of plants and animals

• Wind weakens the rock

• The chemical composition of rock is changed thereby breaking it down

A piece of sandstone changing colour (from brown to rusty red) from exposure to water and air is an example of:

• mechanical weathering

• chemical weathering

Mechanical weathering involves _________ changes causing rocks to break down

• chemical

• marine

• biological

• physical

This is a picture of a

• rotational slump

• creep

• mudflow

• landslide

These are called _______________________.

• rotational slumps

• mudflows

• rock falls

• landslides

This is a picture of a

• rotational slump

• Rock fall

• mudflow

• landslide

Which factors play a role in creating ocean waves?

• Wind speed, duration, and direction

• Fetch and wind speed

• Wind speed, direction, and fetch

• Wind speed, direction, fetch, and duration

What is swash?

• Movement of water down a beach
• Movement of water up a beach
• Movement of water across a beach
• Movement of water in general

What is this type of wave?

• Constructive wave

• Destructive wave