Study the images of two different fronts.
cold
warm
item a
item b
based on arrow movement, why is the front shown in item a different from the front shown in item b?

hi your question lacks the image and options here is the complete question

Study the images of two different fronts.

Cold

Warm

Item A

Item B

Based on arrow movement, why is the front shown in item A different from the front shown in item B?

A) Warm air rises above cold air in item A, while two air masses collide in item B.

B) Cold air mixes with warm air in item A, while two air masses barely move in item B.

C) Warm air is pushed upward near cold air in item A, while a boundary forms in item B.

D) Two air masses form a boundary in item A, while warm air rises above cold air in item B.

the answer is D

Explanation:

Two air masses form a boundary in item A while warm air rises above cold air in item B. this is because the two air masses form a boundary in Item A because the the air masses of the cold and warm air are equal hence the formation of the boundary been seen in item A.

In Item B it is seen that the warm air rises/moves above the cold air because air is lighter in the atmosphere when they are warmer than usual,leading to it rising above cold air when together in same environment.

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