Question

How does composition of rocks affect mechanical weathering?

Answer 1

Answer:

The composition of rocks and climate also affect rates of weathering. The rate at which a rock weathers is affected by the amount of the rock's surface that is exposed to chemical weathering processes. As shown below, when a rock is broken into smaller pieces by mechanical weathering, more of its surfaces are exposed.

Explanation:

Answer 2

Answer:

• the earth crust is composed of rocks.

• a rock is made up by aggregate of one or more minerals.rock may be hard. Thus, minerals are naturally occurring organic and inorganic substances, having an orderly atomic structure and a definite chemical composition and physical properties. a mineral is composed of two or more element. but, sometimes single like sulphur, copper, silver, gold, graphite etc.are also found.