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Bingel [31]
3 years ago
11

A long time ago, farmers discovered that if they grow the same

Biology
1 answer:
levacccp [35]3 years ago
5 0

Answer:

Because they don't have fertilizer.

Explanation:

Well, if this was a long time ago, then farmers did not have fertilizer. So, there are bacteria on the roots of plants that convert nitrogen into a usable form. It's very important for growing, and when farmers harvest the crop, not much of the nitrogen is returned to the land, so it is not as fertile. Fertilizer is largely consisted of nitrogen, so that is why farmers use fertilizers today. But "a long time ago," farmers did not have fertilizer.

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Mars2501 [29]

Answer: DNA bases are A,T,C,G and here we have U which is not a DNA base therefore being an RNA strand. RNA bases are A,C,U,G.

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3 years ago
What are some substances produced by photosynthesis?​
faltersainse [42]

Answer:

In photosynthesis, energy from light is used to convert carbon dioxide and water into glucose and oxygen. For 6 carbon dioxide and 6 water molecules, 1 glucose molecule and 6 oxygen molecules are produced.

Explanation:

3 0
3 years ago
Which is the best description of osmosis?
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Osmosis by definition is <span>movement of water from a high water concentration to a lower salt concentration.

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</span>
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3 years ago
Use what you know about atmospheric circulation and seasonal changes in the sun’s orientation to earth to explain the highly sea
viva [34]

Answer:

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In this region, the sun is directly or almost overhead as seen during summer periods in the tropics.

Only in areas of the North and South of the ITCZ known as doldrums which at times are parallel to the ITCZ do we have high pressure that aren't conducive to precipitation causing dry season in the tropics.

In the ITCZ zone, we also have the tropical rain forests along the equator with huge amount of all round rain for the year.

Along the equator, on either side of the rain forests we have the dry and wet forests with the savannah to the North of this region and the southern hemisphere to the south of these forests since these forests are seen mostly in the ITCZ than the savannahs.

Rain shadows and ocean cueeebts may at times cause some savannahs to be along the equator and some rain forests -wet and dry forests- to be positioned further form the equator.

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Inessa05 [86]

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