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
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
A. chlorophyll
B. atmosphere
C. light
D. soil
A. osmosis
B. active transport
C. diffusion
D. passive transport
A. Potassium chloride
B. Potassium carbonate
C. Potassium hydroxide
D. Sodium bicarbonate
A. Leaf and other chloroplast bearing parts
B. stem and leaf
C. Roots and chloroplast bearing parts
D. Bark and leaf
A. I and II are correct
B. II and III are correct
C. III and IV are correct
D. I, II, III and IV are correct
A. starch
B. sugar
C. amino acids
D. fatty acids
A. free nitrogen
B. urea
C. ammonia
D. proteins