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den301095 [7]
3 years ago
13

What is one negative effect of human influence on cycles of matter?

Biology
2 answers:
ycow [4]3 years ago
6 0

honestly for me its between 2 and 3

Bezzdna [24]3 years ago
6 0

Answer:

decreased soil nitrogen due to the harvesting of crops.

Explanation:

Nitrogen is an element that is very important for all organisms because is a key element to build proteins. Nitrogen is acquired by plants through a process called assimilation. This nitrogen is build up in the soil by different processes and bacteria are the main organisms responsible for it. When plants, let's say corn, are grown in a field they take the nitrogen from the soil and incorporated into their biomass, when they are harvest, this nitrogen is exported out of the soil because we ship it no consumers. Normally organisms die and the decomposition process returns the nitrogen to the soil again.

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The correct answer is A. Decline in vision

Explanation:

The term "middle age" is used to describe the time span between 45 and around 65 in human life. During this, important changes occur in terms of senses, this age usually implies a decline in senses including pain, taste, smell, and vision. In terms of vision, it is common during middle ages people began experiencing blurring vision or weakened vision as during this age conditions such as presbyopia, glaucoma, cataracts, among others. Additionally, the decline in vision in this age is commonly related to other conditions such as diabetes, the use of medicines and also jobs that are visually demanding. Thus, in middle age, people commonly experience a decline in vision.

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