Earth Science Trivia Quiz For 8th Grade!

Water can be stored or retained because it has the ability to be contained in various forms such as lakes, rivers, and reservoirs. Additionally, water can also be stored in man-made structures like tanks and dams. This storage of water is crucial for human consumption, agriculture, and industrial purposes. Furthermore, water can be retained in the ground through processes like infiltration, where it seeps into the soil and is stored in underground aquifers. Overall, the statement is true as water can indeed be stored or retained in different ways.

Definition.

Prevailing winds refer to the dominant direction of winds in a particular region over a long period of time. These winds are caused by the uneven heating of the Earth's surface by the sun, which creates areas of high and low pressure. As air moves from high pressure to low pressure, it generates wind. Therefore, prevailing winds are indeed movements of air over the Earth's surface, making the answer true.

The ultimate source of most water on land is the evaporation of the oceans' water. This is because the oceans cover about 71% of the Earth's surface and contain about 97% of the Earth's water. When the sun heats up the surface of the ocean, the water evaporates and turns into water vapor. This water vapor then rises into the atmosphere and eventually condenses to form clouds. These clouds then release precipitation, such as rain or snow, which falls on the land and replenishes freshwater sources like rivers, lakes, and groundwater. Therefore, the evaporation of the oceans' water is the primary source of water on land.

Precipitation can flow over Earth's surface as runoff. 1/3 of the precipitation falling on land is returned to the water cycle through a runoff.

The water cycle is fueled by solar energy because the sun's heat causes water on the Earth's surface to evaporate and rise into the atmosphere. This process, known as evaporation, is a crucial step in the water cycle. The sun's energy also powers the condensation of water vapor into clouds and the subsequent precipitation, completing the cycle. Without solar energy, the water cycle would not be possible.

The greater the porosity of the loose materials at Earth's surface and the rocks, the greater the amount of infiltration that can occur. POROSITY- pores, open empty space.

2- water table

When precipitation cannot sink through the ground, it is referred to as impermeable. This means that the ground does not allow water to pass through it, resulting in the water accumulating on the surface. Another term that can be used to describe this situation is saturated (full), which means that the ground is already holding as much water as it can and cannot absorb any more. Both terms indicate that the precipitation is unable to penetrate the ground and instead remains on the surface.

Evaporation and transpiration are two processes through which moisture enters the atmosphere. Evaporation occurs when water changes from a liquid state to a gaseous state, typically from bodies of water, such as oceans, lakes, and rivers. Transpiration, on the other hand, is the process by which plants release water vapor into the air through their leaves. Both these processes contribute to the water cycle, where moisture is continuously exchanged between the Earth's surface and the atmosphere.