The video discusses the growing issue of water scarcity due to low precipitation and overpopulation. It introduces cloud seeding as a scientific solution to stimulate rain production by using silver iodide to encourage water molecules in clouds to freeze and fall as rain. The process is used globally to increase precipitation for agriculture and prevent certain weather conditions. However, cloud seeding cannot create clouds and is limited in arid regions. There are controversies regarding its effectiveness and potential climate impacts, as it may redistribute rain rather than create new precipitation.

What is the main reason for the increasing difficulty in finding clean, fresh water?

• Deforestation

• Low precipitation and overpopulation

• Industrial pollution

• Global warming

What is the role of silver iodide in the cloud seeding process?

• It absorbs water vapor

• It acts as a catalyst for cloud formation

• It disperses rainwater evenly

• It encourages water molecules to freeze

Which of the following is NOT an application of cloud seeding?

• Increasing precipitation for crops

• Preventing fog at airports

• Creating new clouds

• Enhancing snowfall in ski resorts

What is a major limitation of cloud seeding?

• It is only effective during winter

• It requires a large amount of silver iodide

• It cannot create clouds

• It can only be used in tropical regions

What is a potential negative impact of cloud seeding on the environment?

• It depletes the ozone layer

• It can lead to droughts in other areas

• It increases the risk of hurricanes

• It causes soil erosion