Question 28
Complete the following cycle given as Fig. 2.4 by filling the blanks (a), (b), (c) (d)

Open in App

Solution

(a) Atmospheric Nitrogen Fixation by Lightning:
Lightning converts atmospheric nitrogen into oxides of nitrogen which then combines with rain droplets to fall down as soluble nitrogen compounds.
(b) Biological Nitrogen Fixation by nitrogen fixing bacteria:
Root nodules of the leguminous plants contain the nitrogen fixing bacteria and blue green alga that fix the atmospheric nitrogen into nitrogenous compounds.

(c) Excretion:
Animals excrete their excretory wastes in the form of nitrogenous products like urea, uric acid.

(d) Denitrification:
Denitrifying bacteria turns the nitrogenous compounds present in the soil into gaseous nitrogen to enter the atmosphere.

Suggest Corrections

Similar questions

Q. Question 28
Complete the following cycle given as Fig. 2.4 by filling the blanks (a), (b), (c) (d)

Question 28

Fill in the blanks to make the statement true.

- a - b - c is same as - a - ( ___ ).

In each of the following questions a number series is given. After the series a number is given followed by (A), (B), (C), (D) and (E). Complete the series starting with the number given following the sequence of the given series. Then, answer the question given below each:
8, 49, 288, 1435, 5736,
5 (A), (B), (C), (D), (E)
Which of the following numbers will come in place of (E)?

Question 17
Which of the following ray diagram is correct for the ray of light incident on a lens as shown in figure 1?

(a) Fig. A.
(b) Fig. B.
(c) Fig. C.
(d) Fig. D.

Question 16
Which of the following ray diagrams is correct for the ray of light incident on a concave mirror as shown in figure 10.6?

(a) Fig. A
(b) Fig. B
(c) Fig. C
(d) Fig. D

Join BYJU'S Learning Program

Explore more

Nitrogen Fixation

Standard VII Biology

Join BYJU'S Learning Program

Question 28 Complete the following cycle given as Fig. 2.4 by filling the blanks (a), (b), (c) (d)

Question 28
Complete the following cycle given as Fig. 2.4 by filling the blanks (a), (b), (c) (d)