Which of the following is not a threat to rainforest preservation?

a. agriculture

b. indigenous populations

c. hunting and fishing

d. unsustainable logging

Compare demographic and environmental effects of the columbian

Which barrier to economic development is shown in the following examples?

Tides are caused by a differences in the gravitational force of the sun at different points on earth. differences in the gravitational force of the moon at different points on earth differences in earth’s gravitational field strength at different points on earth’s surfac fluctuations in the gravitational attraction between earth and the moon.