The Water Cycle and the Ocean

The video explains the water cycle's crucial role on Earth, detailing its main components: evaporation, condensation, and precipitation. It describes how water evaporates, leaving salt behind, and forms clouds through condensation. Precipitation occurs when clouds are saturated, falling over land or back into oceans. The cycle connects global water bodies, affecting areas like deserts and drought-prone regions. Earth's oceans, covering 70% of its surface, are vital to this cycle, ensuring water is continuously reused.

What are the three main processes involved in the water cycle?

• Melting, boiling, and freezing

• Evaporation, condensation, and precipitation

• Sublimation, deposition, and freezing

• Infiltration, runoff, and transpiration

How does ocean water contribute to the water cycle despite its saltiness?

• The salt is absorbed by the atmosphere

• The salt remains in the ocean during evaporation

• The salt is filtered out by clouds

• The salt evaporates with the water

What happens to precipitation that falls on land?

• It turns into clouds

• It is absorbed into the ground

• It evaporates immediately

• It becomes salty

Which areas can receive precipitation due to the global nature of the water cycle?

• Deserts and drought-prone areas

• Only polar regions

• Only coastal regions

• Only tropical regions

What percentage of Earth's surface is covered by oceans?

• 80%

• 70%

• 60%

• 50%