1
Question
Which of the following statements are correct?
I. Liberation of oxygen from water took place by the action of UV rays from the sun.
II. Free oxygen combined with methane and ammonia to form water, carbon dioxide and other gases.
Which of the following statements are correct?
I. Liberation of oxygen from water took place by the action of UV rays from the sun.
II. Free oxygen combined with methane and ammonia to form water, carbon dioxide and other gases.
Open in App
Solution
The correct option is C Both I and II
Statements I and II are correct.
Earth originated about 4.5 billion years ago.
The conditions of the primitive earth are as follows:
a. The primitive atmosphere on earth contained gases like ammonia, methane, and water vapour.
b. The ultraviolet radiation from the sun broke water into oxygen and hydrogen.
c. Hydrogen gas being lighter, escaped.
d. The oxygen released quickly reacted with methane and ammonia forming water, carbon dioxide and other gases.
e. The ozone layer was formed.
f. As temperature on the earth came down, the water vapour fell as rain, to fill all the depressions and thus, oceans were formed.
Statements I and II are correct.
Earth originated about 4.5 billion years ago.
The conditions of the primitive earth are as follows:
a. The primitive atmosphere on earth contained gases like ammonia, methane, and water vapour.
b. The ultraviolet radiation from the sun broke water into oxygen and hydrogen.
c. Hydrogen gas being lighter, escaped.
d. The oxygen released quickly reacted with methane and ammonia forming water, carbon dioxide and other gases.
e. The ozone layer was formed.
f. As temperature on the earth came down, the water vapour fell as rain, to fill all the depressions and thus, oceans were formed.
Suggest Corrections
0
Similar questions
View More
Join BYJU'S Learning Program
Explore more
Join BYJU'S Learning Program
