What kind of material help to cleanse ground water through the exchange of compounds and elements?

The nitrogen cycle which is converted to an intermediate, is generally used by the organism at certain levels, hence option c nitrogen gas, ammonium, nitrite, nitrate is correct.

What is the nitrogen cycle?

The nitrogen cycle in the biogeochemical cycle converts nitrogen into various chemical intermediates as it cycles into the air, terrestrial, and marine environments.

The nitrogen conversion processes occur through both biological and physical mechanisms. Fixation, ammonification, the first two steps, nitrification, and denitrification are all important processes in the nitrogen cycle.

The bulk of the Earth's atmosphere contains  (78%) majorly composed of atmospheric nitrogen, make the primary source of nitrogen.

Therefore, option c begins with nitrogen gas, ammonium, nitrite, and nitrate in the correct order.

Learn more about the nitrogen cycle, here:

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Answer:

One of the reason the countries wanted colonies due to industrial revolution was because of the natural resources this colonies could provide.

Explanation:

Industrial Revolution was a period in time between the 1700s and 1800s when there was a great turnaround in Industrialization in Great Britain first then it spread around the world. Industries started producing goods on a large scale.

There was a great advancement in Agriculture, Textile manufacturing and Electrical advancements as well.

Due to the Industrial Revolution, the industries in Great Britain start to expand and the economy was growing but there was shortage of raw materials. This made countries such as Great Britain to go in search of colonies because the colonies had an abundance of raw materials in form natural resources such as Cotton, Cocoa, Gold, Timber, Rubber which the industries needed in order to thrive well.

This led to the colonisation of countries like Africa, Asia and India.

Chemoreceptors are responsible for smell and taste

Answer: D. the lanthanide series and the actinide series.

Explanation: I TOOK THE PENNFOSTER EXAM AND I GOT IT CORRECT!

Answer:

Explanation:

Some deserts plants such as cacti are adapted to store water and some grow long roots to absorb water from deep below the surface. Deserts plantsgenerally do not have leaves. 1. water plants have water but desert plants have less water.

Three Louse Vectored Pathogens

Explanation:

• The body louse , Pediculus humanus corporis, is the vector of three human pathogens such as   the operator of pandemic typhus  and Borrelia recurrentis and Rickettsia prowazekii,

• The specialist of backsliding fever and Bartonella quintana, the operator of channel fever, bacillary angiomatosis, endocarditis, incessant bacteremia, and constant lymphadenopathy.
• Mite borne ailments can be related with high rate of illness and demise, particularly scourge typhus and backsliding fever, which can be lethal in up to 40% of patients.
• The ailments are for the most part common in individuals living in neediness and packed conditions, for instance, vagrants and those associated with war circumstances.