SECTION 19.1 Forces Within Earth
In your textbook, read about the effects of stress and strain on rocks.
Answer the following questions.
Typical Stress-Strain Curve
Failure
Elastic limit
Stress
Strain
1. What is stress?
2. What is strain?
3. What is compression?

The ancestors of plants that lived in water had plenty of water for the young. angiosperms are a group of land plants that evolved a reproductive trait for living on land. this trait protect young plants by allowing them to grow only when water is present and the conditions for healthy development are right. what trait most likely young angiosperms in this way?