Study the images of two different fronts. Item A: Arrows for a cold front and warm front meet with high level, grey clouds. Item B: Arrows for a cold front and warm front are moving in the same direction. The warm front is above the cold front.

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

Warm air rises above cold air in item A, while two air masses collide in item B.
Cold air mixes with warm air in item A, while two air masses barely move in item B.
Warm air is pushed upward near cold air in item A, while a boundary forms in item B.
Two air masses form a boundary in item A, while warm air rises above cold air in item B.

B

Explanation:

the tides are influenced by both the moon and the sun, it's easy to see that when the sun lines up with the moon and the earth, as during a new moon or full moon, the tidal effect is increased. these are known as spring tides, named not for the season, but for the fact that the water "springs" higher than normal. on the other hand, if the sun and the moon are 90 degrees apart in relation to an observer on earth as during the first quarter moon or third quarter moon, then high tides are not as high as they normally would be. this is because despite its greater distance, the sun's mass allows it to exert enough gravitational force on the oceans that it can negate some of the effects of the moon's pull. this phenomenon of lower high tides is called a neap tide. if you need more information on this topic visit moonconnection.com.

1 is the answer to this problem