Why might the European colonial powers have preferred to place in leadership positions members of the minority Tutsis rather than members of the majority Hutus?

What is the speed of sound in water

Iam stuck on this question! 45 points : ) how do increases in temperature affect the density of ocean water? answer choices: (a) density does not change (b) density increases (c) density becomes variable (d) density decreases

Which factors add to the greenhouse effect and are caused by human activities?