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Dynamic Earth unit 1
science test
Question | Answer |
---|---|
What causes granite to break down? | Plant acid. |
What results from rock abrasion? | The rock will change size. |
What happens to a rock when it is weathered? | It will break down into small pieces. |
What are the five causes of physical weathering? | Pressure change, animal action, wind water and gravity, temp. change, and plant growth. |
What are the four causes of chemical weathering? | Oxidation, acid precipitation, acidic groundwater, and acid in living things |
*Question six can not be displayed because of to many words* | *Answer six can not be displayed because of to many words* |
What are the two main causes of crack growth in rocks over time? | Ice wedging and plant growth. |
How does animal behavior cause physical weathering? | Worms eat soil, animals dig burrows. |
How does weathering affect a soft rock more than a hard rock? | A soft rock will break easier. |
What are the 3 causes of abrasion of a rock? | Water, wind, and gravity. |
what happens to a rock because of chemical weathering? | It crumbles and breaks down. |