Science, asked by nandha2401, 2 months ago

what is the oldest method of fertilizers and what is the affect of using harmful chemical fertilizers​

Answers

Answered by ravalika31
2

Answer:

some of these chemical fertilizers impacts include algae blooms causing the depletion of oxygen in surface waters, in pathogens and nitrates in drinking water , and the emission of ordors and gases into the air . nutrients from manure and fertilizers enter lakes and streams through runoff and soil erosion.

Answered by shubha588
3

Answer:

I'll help you out with this

the oldest fertilizers is the cow dung which is stored and kept for many days. usually we can see in villages.

the effect of harmful chemical fertilizer are when we spray it on the crops or plants.

after cutting it we only have to eat it isn't it? for example ragi crop or some other fruits plants or trees

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