3. How does buffalo grazing affect the grass population?

Grazing animals play an important role in maintaining the ecosystem by stimulating plants to grow. This triggers biological activity and nutrient exchanges. Bison, deer, and cattle compact the soil with their hooves and open new areas for seeds and the generation of plants to take root

Explanation:

this can result in a diverse, heterogeneous landscape of plant species.

Explanation:

9.9 years

a = p(1 + rt) . . account balance after time t at rate r starting with principal p

3000 = 2500(1 + 0.0202t) . . filling in the given numbers

1.2 = 1 + 0.0202t . . divide by 2500

0.2 = 0.0202t . . . subtract 1

0.2/0.0202 = t ≈ 9.901

it will take about 9.9 years for the account balance to reach $3000.

economic impact of malaria is estimated to cost africa $12 billion every year. this figure factors in costs of health care, absenteeism, days lost in education, decreased productivity due to brain damage from cerebral malaria, and loss of investment and tourism.