Question

1. fill in the blanks with the correct terms in the sentences below.

• during _, plants release water into the atmosphere. when there is enough water vapor in the air, the water vapor undergoes _ and forms clouds.
• when enough clouds form, then the water returns to the earth as _. this water can either _ into lakes, streams and rivers, or _ into the soil to fill underground water sources called _.
• the process that contributes the most water vapor is _.
• humans are made up of _% water.

Explanation:

• Transpiration: It is the process by which plants release water vapor into the atmosphere.
• Condensation: When water vapor cools, it changes from a gas to a liquid (forms clouds).
• Precipitation: This is how water (in various forms like rain, snow) returns to the Earth from clouds.
• Run - off: Water flowing over the land into surface water bodies.
• Infiltrate: Water seeping into the soil.
• Aquifers: Underground water - bearing layers of rock.
• Evaporation: The main process contributing water vapor (from oceans, etc., but also a significant contributor overall).
• 60%: A common approximation for the percentage of water in the human body.

Answer:

During transpiration, plants release water into the atmosphere. When there is enough water vapor in the air, the water vapor undergoes condensation and forms clouds. When enough clouds form, then the water returns to the earth as precipitation. This water can either run - off into lakes, streams and rivers, or infiltrate into the soil to fill underground water sources called aquifers. The process that contributes the most water vapor is evaporation. Humans are made up of 60% water.