Question

b. use the information in the summary below to complete the cause - and - effect graphic
organizer:
over time wind, water, ice, gravity, plants, and animals cause rocks to break down into smaller
pieces. for example, when water enters the cracks of a rock and repeatedly freezes and thaws, it
expands the sides of the crack and eventually the rock breaks. bits of broken - down rocks erode
away by such agents as wind and flowing water. eventually, the sediments are deposited as the
water or wind slow down or become weaker. deposited sediments form landforms, such as deltas
and sand dunes (4 points)

Explanation:

For the first row, according to the text, when water enters the cracks of a rock and freezes (the cause), it expands the sides of the crack and eventually the rock breaks (the effect). For the second row, since the effect is sediments are deposited at the mouth of the river and form a delta, referring to the text "Bits of broken - down rocks erode away by such agents as wind and flowing water. Eventually, the sediments are deposited as the water or wind slow down or become weaker", the cause is flowing water (or river water) slows down (or becomes weaker) and carries sediments.

Answer:

1. Effect: It expands the sides of the crack and the rock breaks.
2. Cause: Flowing water (or river water) slows down (or becomes weaker) and carries sediments.