Which is a viable way to combat the effects of drought on the population of Sub-Saharan Africa? A)
seeding the clouds
B)
increasing irrigation
increasing livestock
D)
planting many trees

Planting trees

Explanation:

Because with the trees it allows for more shade and ground cover. IT prevents as much water from evaporating.

answer; researchers typically cannot control people's sexual behaviors as would be necessary in an experiment;

the secretary of state, appointed by the president with the advice and consent of the senate, is the president's chief foreign affairs adviser. the secretary carries out the president's foreign policies through the state department and the foreign service of the united states.