Answer:
C. Increased Aquatic Plant Population
Explanation:
If the wolves eat the beavers than there is less beavers. If there is less beavers than there are more aquatic plants.
Answer:
B
Explanation:
In a command Economy, 1 is right. 3 and 4 are plain Rubbish.
They are important because they contribute to clean air and water for 500 million people this is because they help sustain a healthy forest
These are the factors that determine a nation's human development index (HDI):
1. Average life and health expectancy
2. Education- literacy rates, and ratio of students who are enrolled in primary, secondary and tertiary levels
3. Individual income- a person’s income against the gross domestic product (GDP)