Which one of the following is the correct sequence in the order of decreasing length of the structural parts given below of small intestine in the human body?

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

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