Weathering, Erosion, And Deposition Quiz

Explanation
Weathering refers to the process of breaking down and wearing away of rocks, minerals, and other substances on the Earth's surface. It is caused by various factors such as temperature changes, water, wind, and biological activity. The break of rock accurately describes the process of weathering as it involves the physical and chemical breakdown of rocks into smaller fragments, which can be caused by factors like freezing and thawing, abrasion, and the expansion of roots.

Explanation
Deposition refers to the process of sediment being dropped or settled in a new location. When sediment is transported by wind, water, or ice, it eventually loses its energy and comes to rest. This settling down of sediment is known as deposition. It can occur in various environments such as rivers, beaches, and deltas, where sediments are carried and then deposited. Therefore, the correct answer is "The drop of sediment."

Explanation
Erosion refers to the process by which soil, rock, or other materials are gradually worn away by the action of water, wind, or other natural agents. This process involves the transportation of sediment from one location to another, leading to changes in the landscape over time. Therefore, option a) is the correct definition of erosion. Options b), c), and d) describe related concepts but do not accurately define erosion.

Explanation
Sand dunes can be formed by wind or water. Wind can blow sand particles and deposit them in a specific area, creating a sand dune. This process is known as aeolian sand transport. Water can also play a role in forming sand dunes through processes such as wave action and sediment deposition. Therefore, both wind and water are capable of forming sand dunes, making the correct answer "all of the above".

Explanation
Water can form a glacier because glaciers are formed by the accumulation and compaction of snow over a long period of time. When snow falls on mountains or high-altitude areas, it gradually transforms into ice due to the pressure and weight of the overlying snow. This process, known as "firnification," eventually leads to the formation of glacial ice. Therefore, water is a crucial component in the formation of glaciers.