How do landmasses impact the movement of air and water? (A) They stop all movement of both air and water.

(B) They speed up the air and water and allow it to pass though.

(C) They change the direction and slow them down.

(D) They slow down the air but speed up the water.

The wave shown on the electromagnetic spectrum disturb the medium it passes through a)different frequency. b)the same frequency .

50 pts plz what is the physical state of matter of baking soda.

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)