Which of the following is the major drawback of wind energy?
a. wind machines release harmful toxins.
b. wind machines are harmful to the environment.
c. wind machines only work when wind is blowing.
d. wind is a nonrenewable energy source.

It is believed that europa, one of jupiter’s moons has an ocean beneath its surface. based on how earth’s oceans and atmosphere are believed to have formed, what can be said about europa’s supposed ocean? the arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced , similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s .

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

Which atmospheric later is where earths northern and southern lights occur