Along with earth’s crust, which portion of the upper mantle forms the lithosphere?

Which of the following occurs after a natural or unnatural disturbance in an ecosystem

Ascientist separates a population of mice into two groups. what would most likely increase the rate of speciation in this population. a. teach the two groups different tricks b. allow the two groups to breed with each other c. put the two groups in different environment d. have the two groups live in identical ecosystems

Where are the strongest jet streams located?