Questions · Page 2 of 2

Question(1 Marks)

Question 511 Mark
Which layer is free from water vapour and dust particle?
Answer
The stratosphere is free from water vapour and dust particle.
View full question & answer
Question 531 Mark
In which layers of the earth's atmosphere does the temperature rises very rapidly with increasing height?
Answer
In thermosphere temperature rises very rapidly with increasing height.
View full question & answer
Question 561 Mark
Why do we feel uncomfortable on a humid day?
Answer
It is because sweat from our body does not evaporate easily.
View full question & answer
Question 571 Mark
How does carbon dioxide create a greenhouse effect on earth?
Answer
Carbon dioxide released in the atmosphere create a green house effect by trapping the jeart radiated from the earth.
View full question & answer
Question 601 Mark
Which gas protects us from harmful sun rays?
Answer
Ozone protects us from the harmful effect of the sun rays.
View full question & answer
Question 611 Mark
What is the significance of ozone in the atmosphere?
Answer
One important feature of stratosphere is that it contains a layer of ozone gas it protects us from the harmful effect of the sun rays.
View full question & answer
Question(1 Marks) - Page 2 - Social Science STD 7 Questions - Vidyadip