Ozone hole refers to
A. hole in ozone layer
B. decrease in the ozone layer in troposphere
C. decrease in thickness of ozone layer in stratosphere
D. increase in the thickness of ozone layer in troposphere
Answer: Option C
Solution(By Examveda Team)
The term 'ozone hole' refers to the depletion of the protective ozone layer in the upper atmosphere (stratosphere) over Earth's polar regions. Stratospheric ozone is constantly produced by the action of the sun's ultraviolet radiation on oxygen molecules (known as photochemical reactions).This Question Belongs to General Knowledge >> Biology
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Ordinary table salt is sodium chloride. What is baking soda?
A. Potassium chloride
B. Potassium carbonate
C. Potassium hydroxide
D. Sodium bicarbonate
A. hole in ozone layer
B. decrease in the ozone layer in troposphere
C. decrease in thickness of ozone layer in stratosphere
D. increase in the thickness of ozone layer in troposphere
A. angiosperms
B. gymnosperms
C. monocotyledons
D. dicotyledons
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A. transfer of pollen from anther to stigma
B. germination of pollen grains
C. growth of pollen tube in ovule
D. visiting flowers by insects
Lactase hydrolyses lactose into
which of the following is used in biogas plants to generate biogas and Manure.
(A) non_biidegradable
(B) biodegradable substance
(C) both (a) & (b)
(D) neither (a) nor (b)
which of the following is used in biogas plants to generate biogas and Manure
Ozone hole refers to
antarctica
TROPOSPHERE - IS THE LOWER MOST SPHERE AROUND THE EARTH. IT MAINLY CONSISTS OF AIR, GASES, WATER STEAM ETC.
STRATOSPHERE - IS THE 2ND MOST LAYER AROUND THE EARTH.IT MAINLY CONSISTS OF OZONE LAYER. OZONE LAYER DENSITY HIGHER AT THE MIDDLE PORTION FROM LOWERING. IT START INCREASING UP TO HIGHER THEN START DECREASING.