Deforestation in africa has had the effect of

a) preventing the spread of disease

b) leading most in the country to prosperity

c) causing a lasting boom in the timber industry.

d) causing massive starvation and a migration of people

Option 'D' is correct.

Step-by-step explanation:

Deforestation in Africa has had the effect of causing massive starvation and a migration of people as the number of population of nomads is more in Africa and they live in forests and get their food from there. As forest is the main source for them for their survival.

Deforestation means "Cutting down of trees in a large number ":

So, they get affected by this .

Hence, Option 'D' is correct.

8

step-by-step explanation:

80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh