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Question 3
Which of the following is NOT one of the ways that humans upset the balance in an
ecosystem?
1.by bringing in harmful plants
2.by destroying too many trees
3.by studying plants and animals
4.by using pesticides

Respuesta :

rodriguezamnada

Answer:

3. by studying plants and animals

Explanation:

Bringing harmful plants causes harm to the other species living there.

Destroying a lot of trees takes away a lot of homes from animals.

If you're just studying them no harm is being done.

Using pesticides can cause negative effects to the plants and animals who eat them.

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