Find power is 40 Joules of work are being done in 8 seconds.

Which mantle is under the crust the upper mantle or the lower mantle i think it's upper let me know if i'm right

What is it called when part of a cell membrane closes around a molecule to allow the molecule to enter the cell? a. passive transport b.diffusion c. endocytosis d. exocytosisc. endocytosis

Explain why it’s important for scientists to study the sun. list at least two challenges researchers face when examining earth’s nearest star.