The video explains how atoms are recycled in nature, focusing on the water and carbon cycles. It describes how water evaporates, condenses, and precipitates, forming a continuous cycle. The carbon cycle involves photosynthesis, respiration, and the formation of fossil fuels, highlighting the movement of carbon through different stores like air, plants, soil, and animals.

What is the significance of recycling atoms and molecules in the environment?

• It allows the creation of diverse organisms over time.

• It helps in the formation of new planets.

• It prevents the extinction of species.

• It increases the Earth's temperature.

Which process in the water cycle involves the conversion of water from leaves into vapor?

• Evaporation

• Condensation

• Precipitation

• Transpiration

What happens to water vapor when it accumulates in the sky?

• It turns into snow.

• It becomes part of the soil.

• It condenses into clouds.

• It evaporates further.

In the carbon cycle, what is the primary role of photosynthesis?

• To release carbon dioxide into the atmosphere.

• To form fossil fuels.

• To convert carbon dioxide into biological molecules.

• To decompose dead organisms.

How can dead organisms contribute to the formation of fossil fuels?

• By decaying in aerobic conditions.

• By being consumed by animals.

• By decaying in anaerobic conditions.

• By being exposed to sunlight.