If your fear of heights is so extreme that it interferes with your performance at school or work or hampers your enjoyment of everyday activities, you might have acrophobia. Learn about acrophobia and effective methods to deal with your fear.
Weathering may be caused by the action of water, air, chemicals, plants, or animals. Chemical weathering involves chemical changes in the minerals of the rock, or on the surface of the rock, that make the rock change its shape or color. Carbon dioxide, oxygen, water, and acids may all cause chemical weathering.Mechanical weathering is the process of breaking a large rock into smaller pieces without changing the minerals in the rock. Mechanical weathering may be caused by frost, ice, plant roots, running water, or heat from the sun.eathering may be caused by the action of water, air, chemicals, plants, or animals. Chemical weathering involves chemical changes in the minerals of the rock, or on the surface of the rock, that make the rock change its shape or color. Carbon dioxide, oxygen, water, and acids may all cause chemical weathering.
_____ is a natural process that causes rock to change, breaks them down, and causes them to crumble. Mechanical _____ weathering breaks rocks into smaller pieces without changing them chemically.