Human activities have a big effect on how populations of animals and plants grow and change. Here are some of the ways this happens:
Habitat Destruction: When people build cities, farms, and cut down forests, they destroy places where wildlife live.
A good example is the cutting down of trees in the Amazon rainforest, which has harmed many animal and plant species.
Pollution: Pollution, or harmful substances, can mess up how animals reproduce.
For instance, chemicals that get into rivers and lakes can cause fewer fish to be born.
Overexploitation: Taking too many animals from the wild, like through overfishing or hunting, puts some species in danger.
A famous case is the decline of cod fish populations because they were caught too often.
When we do these things, we change the balance in nature. This affects how different species interact with each other and can lead to problems with their populations.
Human activities have a big effect on how populations of animals and plants grow and change. Here are some of the ways this happens:
Habitat Destruction: When people build cities, farms, and cut down forests, they destroy places where wildlife live.
A good example is the cutting down of trees in the Amazon rainforest, which has harmed many animal and plant species.
Pollution: Pollution, or harmful substances, can mess up how animals reproduce.
For instance, chemicals that get into rivers and lakes can cause fewer fish to be born.
Overexploitation: Taking too many animals from the wild, like through overfishing or hunting, puts some species in danger.
A famous case is the decline of cod fish populations because they were caught too often.
When we do these things, we change the balance in nature. This affects how different species interact with each other and can lead to problems with their populations.