Answer:
true , only 50 percent organisms extinct each year
Answer:
Nuclear fusion is the process of making a single heavy nucleus (part of an atom) from two lighter nuclei. ... Fusion happens in the middle of stars, like the Sun. Hydrogen atoms are fused together to make helium. This releases lots of energy
Explanation:
Assimilation was practiced by the Europeans against the Native Americans.
Explanation:
Cultural Assimilation is referred to as the process where small groups or culture form a dominant group. The cultural assimilation was an effort made by the Europeans to convert the culture of Native Americans into the culture of European- American in between 1790 and 1920.
United States also established boarding school for the Native American and the children had to attend the school. In case of cultural assimilation a person's language or a group of person's language and culture tries resemble with another group.
The corona is an envelope of ionized gases that extends out past the sun.
The corona is the third layer of the Sun. This layer takes the out most portion of the Sun's atmosphere. It is consisted of ionized gases that normally extend around one million kilometers from the Sun's surface.
Explanation:
Nutrient cycle is the exchange of organic and inorganic matter between physical environment and living organisms .
Hence , when the neighbor is applying fertilizers, then he is giving essential providing macro nutrients (phosphorous, nitrogen and potassium) to the soil. But soil will have both micro and macro nutrients in balance. Excess macronutrients will reduce micronutrients availability , as plant may not be using all the nutrients supplied by the neighbor . This will cause the accumulation of nitrogen in the soil thus affecting the nitrogen cycle (nitrogen cycle is one of the Earth's biogeochemical cycles). Plants will get nitrogen from soil and bacteria will convert it to a usable form , but readily available excess nitrogen will allow <u>the growth of weeds</u>, and<u> washing of these nutrients will create eutrophication situation.</u> In usual cases plants absorbs nitrogen in the form of nitrates and bacterial also converts ammonium into nitrates, the denitrifying bacteria converts this nitrate to nitrites and nitrogen gas. The excessive availability of nitrogen from fertilizer will disturb the balance of nitrogen available in the soil .
