2. List seven land biomes that are found on Earth.

3. Making Inferences While excavating an area in the desert, a scientist discovers the fossils of very large trees and ferns. - What might the scientist conclude about biomes in this area?

4. The scientist might conclude that the area was once a forest biome and that the area received more rain in the past.

5. Use the graph below to answer the question .
Scientists involved in a field study of a biome produced the graph above. The line represents temperature and the bars represent precipitation. Which of the following is a valid conclusion about the biome?
A. The biome is a rainforest.
B. The annual variation in temperature (from high to low) is about 25°C.
C. The biome receives the same amount of rainfall each month.
D. The biome has little plant life.

6. B. The annual variation in temperature (from high to low) is about 25°C.

7. In a savanna, the average yearly rainfall is 150 cm
In a savanna, the average yearly rainfall is 150 cm. The average yearly rainfall in a desert is 25 cm. If a global climate change causes the savanna’s average yearly rainfall to decrease by 0.5 cm every year, in how many years will the savanna become a desert?
A. 50 years
B. 125 years
C. 250 years
D. 300 years

8. C. 250 years