Q43. Why is the greenhouse effect important?
Q44. Why amount of insolation decreases from equator towards poles?
Q45. How air circulation takes place?
Q46. Air above us presses us with a great force on our bodies. However, we don’t even feel it. Why?
Q47. Why do astronauts wear space suits on the moon?
Q48. Why temperature in cities much higher than that of villages?
Q49. Why is the atmosphere essential for life?
Q50. What are the harmful effects arising from the greenhouse effect?
Q51. Discuss the importance of stratosphere?
Q52. What is the composition of the atmosphere?