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dlinn [17]
2 years ago
10

How does the addition of pesticides and chemicals into lakes and streams affect an ecosystem?

Social Studies
2 answers:
Setler [38]2 years ago
6 0

Answer:

The addition of pesticides and chemicals into the water of lakes and streams affects an ecosystem because it kills or weakens much of the fish population. Weakened fish are easy prey for predators, and predators that rely on fish for their food may find an insufficient supply. Another problem is that the water bugs or plant life that the fish feed on will increase in population, throwing off the balance of the ecosystem. Finally, algae and bacteria grow too quickly with the addition of chemical fertilizers.  This can cause dead zones, where there is not enough oxygen in the water for fish to survive.

Explanation:

almond37 [142]2 years ago
3 0

Answer:

The addition of pesticides and chemicals into the water of lakes and streams affects an ecosystem because it kills or weakens much of the fish population. Weakened fish are easy prey for predators, and predators that rely on fish for their food may find an insufficient supply. Another problem is that the water bugs or plant life that the fish feed on will increase in population, throwing off the balance of the ecosystem. Finally, algae and bacteria grow too quickly with the addition of chemical fertilizers.  This can cause dead zones, where there is not enough oxygen in the water for fish to survive.

sample answer

Explanation:

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How does geography impact the relationship among countries in southwest asia
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  The geography of Southwest Asia opens up a space for a good connection between the countries and thus to create similar, if not same, cultural traits because of the absence of natural blockades between them, so the communication is easily manageable. Still, the region is dominated by deserts, so even though there's no big mountain ranges between them, it makes it difficult, apart from the coastal areas. Now even though the open terrain usually contributes to good relations, it occasionally causes problems as well, and this region is a perfect example of that, because lots of the countries are in very bad relations.

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A subject has been
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What has happened to a subject when it responds naturally to a stimulus that

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A subject has been <u>conditioned</u> when it responds naturally to a stimulus that

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  • Conditioning is the process of modifying a person or animal's behaviour. It involves continuous preparation and training to instill such behavior in an animal or human.

There are two types of conditioning:

  • Classical conditioning: This is the process of associating a response and a stimulus involuntarily. There is no reward for the learner.

  • Operant conditioning: This is the process of associating a response and a stimulus voluntarily. There is reward for the learner.

Therefore, subject has been <u>conditioned</u> when it responds naturally to a stimulus that wouldn't typically cause that response.

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