Why is the nitrogen cycle considered a closed system?

Answers

Answer 1

Answer:

because nitrogen is fixed by bacteria and assimilated by plants

Explanation:

Answer 2

Answer:

It is a considered a closed system because nitrogen is fixed by bacteria and is taken in by plants.

Explanation:


Related Questions

choose the letter that best describes the behavior of a substance during a phase change:

/A/ neither absorbs or releases energy

/B/ always absorbs energy

/C/ always releases energy

/D/ either absorbs or releases energy

Answers

Answer:

/D/ either absorbs or releases energy

Explanation:

During a phase change energy is either absorbed or released.

A phase change is a reversible process which occurs when a substance changes is its state from one form to another.

Phase changes are used to delineate physical changes.

A phase diagram provides a graphic representation of the change. The diagram can be 2 dimensional or 3 dimensional.

Which types of matter are made of atoms

a. Mixtures
b. Elements
C. Compounds
D. All of the above

Answers

Answer:

D all above yes I think it's all above

Answer:  D

Explanation: All of the above.

Plz mark brainliest:)

Which of the following is the correct model of C7H16?
A.
B.
C.
D.

Answers

Answer:

D

Explanation:

Option D gives the correct model of C7H16. From the option, one will discover that the model has 7 carbons in the backbone. If you count the attached hydrogen, you will discover that the hydrogen is 16 in total.

This model or skeletal structure of this element represents heptane. Heptane or n-heptane is known to be a straight-chain compound and an alkane. It's chemical formula can also be written as: H₃C(CH₂)₅CH₃ or C₇H₁₆.

This compound is known to be one of the main components of gasoline. It is known to be a volatile organic compound and a clear and colorless liquids with a petroleum-like odor.

Answer: D

Explanation: Just took the test

25 cm of liquid 'A' and 20 cm of liquid
'B' are mixed at 25°C and the volume of
solution was measured to be 44.8 cm3
then correct reaction is
(A) A Hmix = 0, solution shows
ideal

Answers

Answer:

The correct option is;

(B) [tex]\Delta H_{mix} < 0[/tex], solution shows negative deviation

Explanation:

The given parameters are;

The available volume of liquid A = 25 cm³

The available volume of liquid B = 20 cm³

The volume of the solution (mixture) = 44.8 cm³

Therefore, we have;

[tex]\Delta _{mix} V < 0[/tex]

Which is one of the prerequisite for the formation of negative deviation

When a non-ideal solution shows negative deviation according to Raoult's Law, we have;

[tex]\Delta _{mix} H < 0[/tex], we have more heat released due to new molecular interactions.

How many moles are in a sample of 2.39 x 10^23 atoms of sodium (Na)

Answers

Answer:

The answer is 0.4 moles

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

[tex]n = \frac{N}{L} \\ [/tex]

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

[tex]n = \frac{2.39 \times {10}^{23} }{6.02 \times {10}^{23} } \\ = 0.39700996...[/tex]

We have the final answer as

0.4 moles

Hope this helps you

Other Questions
Joe and Carmen are partners in a business. Joe makes $2.00 profit for every $5.00 profit that Carmen makes. If Carmen makes $20 on the first item they sell, how much profit will Joe make? According to the monk, what is one of Fortune's traits?O A. She takes her cues from the devil and punishes people as hedetermines.B. She whimsically changes her mind about whom she supports.C. She befriends specific people who are good to her and rewardsthem as she likes.D. She supports those who follow God and punishes those who dootherwise. What was one way many enslaved Africans resisted their enslavement people wont solve my question i need it ASAP When Arjun makes hot cocoa, he adds 20\text{ mL}20 mL20, start text, space, m, L, end text of chocolate syrup for every 333 ounces of hot water. Arjun's brother, Eli, adds 45\text{ mL}45 mL45, start text, space, m, L, end text of chocolate syrup for every 666 ounces of hot water. Which hot cocoa is more chocolatey? Choose 1 answer: Choose 1 answer: Write 2.08 x 10^2 in standard form. Convert y = x2 - 4x + 1 to vertex form by completing the square.O y= (- 1)2 + 4O y= (1 - 2)2 +5O y= (x - 2)2 3O y = (x - 4) + 1 Longer notes take place over more steady beats than shorter notes.truefalse EASY MATH QUESTION PLEASE I NEED HELP! Gopal bought some books lastSaturday. Linto Yes/No question Which sentence contains a pronoun shift?Morgan gave his new business card to Antonio and me.If one eats sensibly, he or she can expect to feel better.If a runner wants to win, they should practice frequently.When employees park in the garage, they must pay, too. A survey asks students to name their favorite outdoor activity. 12 students say bike riding, 8 students say climbing trees, and 5 students say swimming. Mia says that 40% olf the students say their favorite activity is climbing trees. Is she correct? Explain (4x5)3Using the exponential notion and simplify pls write letter to your brother describinf about discipline How many moles are in a sample of 2.39 x 10^23 atoms of sodium (Na) protons are present in sodium atom.a 11b 10C 12d 9 If someone could help me I would really appreciate it!Factor by slide and divide! As used in the reading, what does the word Jatis refer to?The caste system, as it actually works in India is called jati. The term jati appears in almost all Indian languages and is related to the idea of lineage or kinship group. There are perhaps more than 3000 jatis in India and there is no one all-Indian system of ranking them in order of status. Yet in each local area jati ranking exists and is very much related to purity and pollution. Each jati has some unique job, but not everyone in the jati performs it. Thus there are barbers who do not shave, carpenters who do not build, and Brahmins who do not act as priests. A. The thousands of subcastes in IndiaB. Marriage between members of different caste groupsC. The over complication of the caste system PLEASE ANSWER FAST WILL GIVE BRAINILYWrite an equation or inequality to represent the relationship "threetimes a number decreased by 12 is equal to -18". Then solve.a. Equation :b. Answer: simplify the expression (5x^7)^2