Air is a mixture of various gases. Choose the correct statements about air from the following statements.
A. Plants take nitrogen directly from the air.
B. Green plants release oxygen gas.
C. Helium, Argon, Ozone gases are present in large quantities in the air.
D. Tiny dust particles are present in the air.
1
A and C are true. B and D are false.
2
A and D are true, B and C are false.
3
B and D are true, A and C are false.
4
B and C are true, A and D are false.