The Water And Carbon Cycles Explained Through Engaging Challenges

The video explains the water, carbon, oxygen, and nitrogen cycles, highlighting their processes and importance. It discusses how these cycles maintain balance in the environment and the impact of human activities. The water cycle involves evaporation, condensation, and precipitation. The carbon and oxygen cycles involve photosynthesis and respiration, while the nitrogen cycle includes nitrogen fixation and nitrification. The video emphasizes the need to reduce human interference to prevent environmental issues like global warming.

What process in the water cycle involves water vapor cooling and forming clouds?

• Precipitation

• Condensation

• Transpiration

• Evaporation

Which process in the water cycle is responsible for water returning to the earth's surface?

• Transpiration

• Precipitation

• Condensation

• Evaporation

Which process in the carbon cycle involves plants absorbing carbon dioxide to make food?

• Respiration

• Photosynthesis

• Combustion

• Decomposition

What is the role of decomposers in the carbon cycle?

• They absorb carbon dioxide

• They prevent combustion

• They store carbon

• They release carbon dioxide

What is the main process that releases oxygen back into the atmosphere in the oxygen cycle?

• Decomposition

• Respiration

• Photosynthesis

• Combustion

Which human activity is NOT a way to reduce interference with the carbon and oxygen cycles?

• Planting more trees

• Banning illegal logging

• Increasing pesticide use

• Reducing vehicle emissions

What is the consequence of excessive interference with the carbon and oxygen cycles?

• Global warming

• Global cooling

• Increased biodiversity

• Decreased pollution

What percentage of the atmosphere is made up of nitrogen?

• 78%

• 21%

• 10%

• 50%

In the nitrogen cycle, what process converts nitrogen gas into ammonia?

• Nitrogen fixation

• Denitrification

• Assimilation

• Nitrification

Which process in the nitrogen cycle involves the conversion of ammonia to nitrite?

• Assimilation

• Nitrification

• Ammonification

• Denitrification