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Georgia [21]
3 years ago
5

Which of the statements regarding the nitrogen cycle is true? choose 1 answer: choose 1 answer: a animals obtain nitrogen throug

h the process of cellular respiration. b atmospheric nitrogen is absorbed through the leaves of plants. c nitrogen fixation is the process atmospheric nitrogen is converted into biologically usable forms. d denitrification occurs when a nitrogen containing compound is produced from nitrogen in the soil?
Chemistry
2 answers:
Lera25 [3.4K]3 years ago
7 0
The nitrogen cycle requires different types of bacteria.
Leona [35]3 years ago
4 0

Answer: Option C

Explanation:

The nitrogen cycle can be defined as the process by which the nitrogen is being recycled. The nitrogen is transferred from the atmosphere to the plants and then from plants to animals, human beings.

Then from animals and human beings it is again transferred into the soil and then atmosphere.

The nitrogen that is found in the sol is not in the usable form by the plants, nitrogen fixing bacteria converts it into usable form.

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satela [25.4K]

Answer:

Both the initial and final substances are composed of atoms because all matter is composed of atoms. According to the law of conservation of matter, matter is neither created nor destroyed, so we must have the same number and type of atoms after the chemical change as were present before the chemical change.

Explanation:

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2 years ago
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expeople1 [14]
What does this mean?
3 0
2 years ago
Name a chemical that is safe to use in food in small amounts.
Mrrafil [7]

Answer:

Phthalates.

Perfluoroalkyl chemicals (PFCs)

Perchlorate

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Explanation:

I hope this help

4 0
2 years ago
Write the symbol for every chemical element that has atomic number less than 75 and atomic mass greater than 173.5 u.
bearhunter [10]
Following are the chemical elements that have atomic mass greater than 173.5 u and atomic number less than 75.

1.  Lutetium
                  Atomic Number  =  71
                  Atomic Mass      =  174.97 u

2.  Hafnium
                  Atomic Number  =  72
                  Atomic Mass      =  178.49 u

3.  Tantalum
                  Atomic Number  =  73
                  Atomic Mass      =  180.95 u

4.  Tungsten
                  Atomic Number  =  74
                  Atomic Mass      =  183.85 u
8 0
3 years ago
Salt is an element or a compound?
Afina-wow [57]

Answer:

Salt is a compound

Explanation:

Pure salt consists of the elements sodium and chlorine. Its chemical name is sodium chloride and its formula is NaCl. ... Table salt is a chemically simple combination of two components, sodium and chlorine.

4 0
2 years ago
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