Thème 6💚

Question 1

What are the two main types of lutte control?

Answer 1

Artificial and natural pest control

Artificial pest control includes pesticides, while natural pest control involves introducing natural enemies or predators.

Question 2

What is the consequence of introducing non-native species?

Answer 2

Negative effects such as invasion

Non-native species can disrupt local ecosystems and outcompete native species.

Question 3

What human activities contribute to environmental changes?

Answer 3

Technology, urban expansion, and deforestation

These activities can lead to habitat destruction and biodiversity loss.

Question 4

Define succession in an ecosystem

Answer 4

Le processus par lequel les nouvelles espèces remplacent les anciennes dans un écosystème

Succession is a vital ecological process that helps ecosystems recover and evolve.

Question 5

What is primary succession?

Answer 5

La croissance progressive des organismes dans une zone dénudée

An example is moss growing on a rocky slope, which eventually leads to a more complex ecosystem.

Question 6

Fill in the blank: Primary succession often starts on _______.

Answer 6

a bare area

This can include surfaces like bare rock, sand, or areas exposed after a glacier melts.

Question 7

What is secondary succession?

Answer 7

La croissance progressive dans une zone après une perturbation

Disturbances can include events like fires, tornadoes, or earthquakes.

Question 8

List some examples of disturbances that can lead to secondary succession.

Answer 8

• Fires
• Tornadoes
• Tsunamis
• Avalanches
• Earthquakes

These disturbances can significantly alter the landscape and initiate a new phase of ecological recovery.