Question

which of the following is an example of deposition?
ice expanding in rock cracks
waves breaking down a cliff
wind carrying sand particles
a river forming a delta at its mouth
when a warm air mass meets a cold air mass but neither has enough force to displace the other, what type of front forms?
cold front
stationary front
occluded front
warm front
keplers second law states that:
the orbital period of a planet is proportional to the cube of its semi - major axis
a line connecting a planet to the sun sweeps out equal areas in equal times
planets move faster when they are closer to the sun
all planets move in elliptical orbits

Explanation:

First Question (Deposition Example)

Deposition in geology is the process of sediment being laid down. Let's analyze each option:

• Ice expanding in rock cracks: This is physical weathering (freeze - thaw), not deposition.
• Waves breaking down a cliff: This is erosion (wave erosion), not deposition.
• Wind carrying sand particles: This is transportation (wind transport), not deposition.
• A river forming a delta at its mouth: When a river reaches the ocean, its velocity decreases and it deposits the sediment it was carrying, forming a delta. This is deposition.

• Cold front: A cold air mass displaces a warm air mass.
• Stationary front: Occurs when a warm and cold air mass meet, and neither has enough force to move the other.
• Occluded front: Forms when a cold front overtakes a warm front.
• Warm front: A warm air mass displaces a cold air mass.

So, when neither air mass can displace the other, a stationary front forms.

• "The orbital period of a planet is proportional to the cube of its semi - major axis" is Kepler's Third Law.
• "A line connecting a planet to the Sun sweeps out equal areas in equal times" is Kepler's Second Law.
• "Planets move faster when they are closer to the Sun" is a consequence of Kepler's Second Law, but not the law itself.
• "All planets move in elliptical orbits" is Kepler's First Law.

Answer:

A river forming a delta at its mouth

Second Question (Air Mass Front)