Thème 5💚

Question 1

What is bioaccumulation?

Answer 1

Le processus par lequel les polluants pénètrent dans un réseau alimentaire et s’accumulent à des niveaux trophiques plus élevés

Examples of pollutants include mercury, PCBs, lead, and DDT.

Question 2

Name two examples of pollutants that can bioaccumulate.

Answer 2

• Mercury
• PCBs
• Lead
• DDT

These substances can have harmful effects on ecosystems and human health.

Question 3

What is the carbon cycle?

Answer 3

The continuous movement of carbon within an ecosystem

This cycle is essential for maintaining life on Earth.

Question 4

Fill in the blank: A source of water undergoes _______ which leads to the formation of clouds.

Answer 4

evaporation

Question 5

What process occurs when water vapor condenses to form clouds?

Answer 5

Condensation

This process is a key part of the water cycle.

Question 6

What are the two forms of precipitation mentioned?

Answer 6

• Snow
• Rain

Precipitation is crucial for replenishing water sources.

Question 7

What is transpiration in the context of the water cycle?

Answer 7

The process by which water from plants evaporates into the atmosphere

This process contributes to the overall water cycle.

Question 8

What happens to groundwater in the water cycle?

Answer 8

It flows into a water source, continuing the cycle

Groundwater plays a significant role in replenishing surface water.