12.1 Science

Tuesday- 5.9D

The diagram below shows rock layers next to a road. Layer 3 contains many plant fossils. Layer 3 most likely formed in which of these environments?

• Desert

• Ocean

• Forest

• Tundra

A scientist finds the fossil show. Which question can the scientist most likely answer by examining this fossil?

• What was the average monthly rainfall in the area?

• How much water was absorbed by the roots of this plant?

• How much oxygen was in the atmosphere surrounding this plant?

• What was the environment like in the area when the plant was alive?

An area is currently forest . What evidence would best indicate that this area was covered by water millions of years ago?

• An increase in rainfall in the forest over time.

• The presence of plants in the forest that need water to live.

• FOSSILS of fish discovered in the rocks below the soil.

• Insects living in the forest that lay their eggs in the water.