Science

It is the process of breaking of rock boulders into pieces

• deposition

• erosion

• sedimentation

• weathering

A type of weathering that occurs when acids break down a limestone into small pieces is called____

• chemical

• mechanical

• both chemical and mechanical

• wave action

• animals

• plants

• water

• wind

• contracts

• evaporates

• expands

• sinks

• chemical

• mechanical

• both a and b

• none of these

• contour plowing

• crop rotation

• rip rapping

• strip cropping

• contour plowing

• crop rotation

• terracing

• strip cropping

• contour plowing

• crop rotation

• terracing

• strip cropping

The picture shows another way of controlling soil erosion. This method is known as____

• contour plowing

• crop rotation

• rip rapping

• strip cropping

• use crop rotation

• use contour plowing

• build a fence around the field

• build a canal at the foot of the mountain