Answer:
At an occluded front, the cold air mass from the cold front meets the cool air that was ahead of the warm front. The warm air rises as these air masses come together. ... The temperature may warm or cool. After the front passes, the sky is usually clearer and the air is drier.
link: https://www.windows2universe.org/earth/Atmosphere/tstorm/occl_front.html
Covalent Bonds: A Hydrogen Example. A covalent bond is a chemical bond that comes from the sharing of one or more electron pairs between two atoms. Hydrogen is an example of an extremely simple covalent compound. A hydrogen example.
B - They both use protein channels (I think so at least) they differ because active transports use a pump to leave the cell and it uses atp (cell energy).
think its the second one,have a nice day
It is a good thing because it helps reduce the radiation that the earth emits
