GEOLOGY

EARTH SCIENCE

NATURAL HAZARDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which is an example of a living thing causing deposition?
A
a fish fossilizing in sediment
B
a bird eating a seed
C
a woodchuck dropping a rock
D
a plant growing into a rock crack
Explanation: 

Detailed explanation-1: -Biological weathering is caused by the movements of plants and animals. For example, a rabbit can burrow into a crack in a rock making it bigger and eventually splitting the rock, or a plant may grow in a crack in a rock and, as its roots grow, cause the crack to widen. Even you can be a source of weathering!

Detailed explanation-2: -Over time, trees can break apart even large rocks. Even small plants, such as mosses, can enlarge tiny cracks as they grow. Animals that tunnel underground, such as moles and prairie dogs, also work to break apart rock and soil. Other animals dig and trample rock aboveground, causing rock to slowly crumble.

Detailed explanation-3: -Landslides are actually a very extreme, fast-acting method of erosion: They transfer sediment down a slope and deposit it at the end of their path. The sediment a landslide deposits is known as its talus.

Detailed explanation-4: -For example weathering is the breaking down of rocks and minerals, erosion is the movement the weathered material and deposition is the dropping off of the eroded material.

There is 1 question to complete.