Which statements are part of Darwin’s theory of evolution? Check all that apply
A) Organisms stay the same over time.
B) Organisms change over time.
C) All organisms have common ancestors.
D) Only some organisms have common ancestors.
E) Evolution occurs slowly over extended periods of time.
F) Evolution occurs rapidly over extended periods of time.

This is true hope this

It depends on the surface of the levels. the rougher the surface, the greater is the frictional force. for rougher surfaces, you would need to exert greater force to move the object. the concept is that, you must overcome the frictional force in order to bring the object into motion. this is the reason why we add lubricants to the joints so they could easily move. this answer was on

B.) nitrogen fixationnitrogen fixation is the process of nitrogen molecules seeping into the soil and inside plant roots and bacteria. it gives more "life" to plants