CLEAN : French FM meets Iranian counterpart Zarif on visit to Tehran

What is the primary focus of the introduction section?

• The pollution in rivers

• The wildlife in rivers

• The concept of a river

• The history of rivers

Which of the following best describes a river?

• A stagnant pool of water

• A man-made water channel

• A large body of saltwater

• A flowing body of freshwater

Why are rivers significant in nature?

• They are a source of salt

• They provide habitats for diverse species

• They are primarily for recreational activities

• They are used for desert irrigation

What is one characteristic of rivers discussed in the video?

• They are always deep

• They are always straight

• They flow from high to low areas

• They are only found in tropical regions

Which of the following is not a characteristic of rivers?

• They are always man-made

• They support various ecosystems

• They can change course over time

• They are a source of freshwater