Water and Its Role in Life

The video tutorial discusses the essential role of water in sustaining life on Earth. It covers how water is crucial for the human body, aiding in temperature regulation, waste elimination, and overall health. The tutorial also explains water's importance in animal bodies, highlighting its role in circulation and adaptation to environments. Additionally, it describes how plants rely on water for nutrient transport and photosynthesis. The video emphasizes the necessity of water for all living organisms and the consequences of dehydration.

What percentage of the human body is composed of water?

• 70%

• 50%

• 60%

• 80%

Which of the following is NOT a function of water in the human body?

• Eliminating waste

• Transporting oxygen

• Regulating body temperature

• Producing hormones

What is the recommended daily water intake for an average person?

• 4 liters

• 1 liter

• 2 liters

• 3 liters

Which symptom is NOT associated with dehydration?

• Excessive thirst

• Dry skin

• Headaches

• Increased appetite

What is the primary role of water in the circulatory system of animals?

• Producing energy

• Transporting nutrients and oxygen

• Digesting food

• Storing fat

How long can camels survive without drinking water?

• 20 days

• 10 days

• 15 days

• 25 days

What do camels store in their humps?

• Water

• Fat

• Carbohydrates

• Protein

How do plants primarily lose water?

• Through their roots

• Through their leaves

• Through their flowers

• Through their stems

What process in plants uses water to produce food?

• Germination

• Photosynthesis

• Transpiration

• Respiration

How much water circulates in a sequoia tree daily?

• 300 liters

• 500 liters

• 200 liters

• 100 liters