Science, asked by varshnanthu, 7 days ago

3.
% of oxygen is present in the atmosphere.
a. 78
b. 21
c. 7.8
d. 2.1

Answers

Answered by prathapatel1606

2

Answer:

d

Explanation:

i hope this answer help you

Answered by rajibpradhan1977

7

Answer:

21% of oxygen is present in the atmosphere

Previous Question

Next Question

Similar questions

Science, 3 days ago

8. Diabetes is caused by the lack of a. carbohydrates b. protein c. Vitamins d. insulin...

Science, 3 days ago

What is the beautiful thing in the world? For a boy...

Math, 3 days ago

b) [180 = {12 x 10 – 15 x 9}]+12...

Computer Science, 7 days ago

Windows 7 does not provide graphical user interface...

Math, 7 days ago

Find the prime factorization of 103428 and 51714.Find their HCF and LCM. plz answer this question ...

Math, 7 months ago

In the following question, select the related letters from the given alternatives. JPC : GMZ : : PUV : ? A) MRS B) MSR C) MQR D) RMS...

Math, 7 months ago

cos(A+B) + cos(A-B) is equal to A) 2cosAcosB B) 2sinAsinB C) 2sinAcosB D) 2cosAsinB...

Math, 7 months ago

The ratio of present ages of Ramita and Satyajit is 9:7. After 9 years the ratio of their ages will be 5:4. What is Ramita's present age? A) 81 B) 63 C) 56 D) 80...