Question 1: Define the water cycle and list its main processes.

Answer: The water cycle is the continuous movement of water within the Earth's atmosphere, surface, and underground. Its main processes are evaporation, condensation, precipitation, and collection.

Question 2: Explain how evaporation contributes to the water cycle.

Answer: Evaporation is the process where water changes from liquid to vapour due to heat, mainly from the Sun, and rises into the atmosphere.

Question 3: Multiple Choice: Which process involves water vapour cooling and forming liquid droplets?

Answer: Condensation

Question 4: Fill in the blank: Water that collects in rivers, lakes, and oceans is part of the __________ process.

Answer: collection

Question 1: Describe the process of transpiration and its role in the water cycle.

Answer: Transpiration is the release of water vapour from plant leaves during photosynthesis. It contributes to the water vapour in the atmosphere, aiding the water cycle.

Question 2: Calculate the amount of water (in litres) evaporated if 2 cubic metres of water evaporate in one day. (1 cubic metre of water = 1000 litres)

Answer: 2000 litres

Question 1: Explain how the water cycle influences weather patterns and climate.

Answer: The water cycle influences weather patterns and climate through the distribution of water vapour, which affects cloud formation, rainfall, and temperature regulation. Evaporation cools the environment, while condensation and precipitation distribute water across regions, impacting local climates.

Question 2: Identify two human activities that can disrupt the natural water cycle and briefly describe their impact.

Answer: Deforestation reduces transpiration and cloud formation, leading to less rainfall. Urbanisation increases surface runoff and reduces water infiltration, causing flooding and water shortages.