Biology Ozone hole refers to decrease in thickness of ozone layer in stratosphere hole in ozone layer decrease in the ozone layer in troposphere increase in the thickness of ozone layer in troposphere decrease in thickness of ozone layer in stratosphere hole in ozone layer decrease in the ozone layer in troposphere increase in the thickness of ozone layer in troposphere ANSWER DOWNLOAD EXAMIANS APP
Biology Which among the following carries impure blood to human heart? Vena Cava Aorta Pulmonary arteries Pulmonary vein Vena Cava Aorta Pulmonary arteries Pulmonary vein ANSWER DOWNLOAD EXAMIANS APP
Biology The pollen grains of Pinus are carried to its female cone through the Insects Pollen tube Animals Wind Insects Pollen tube Animals Wind ANSWER DOWNLOAD EXAMIANS APP
Biology Deficiency of which minerals causes goitre? Sulphur Iodine Magnesium Calcium Sulphur Iodine Magnesium Calcium ANSWER DOWNLOAD EXAMIANS APP
Biology The transport of organic substances in plants is through Fibers Wood Xylem Phloem Fibers Wood Xylem Phloem ANSWER DOWNLOAD EXAMIANS APP
Biology Antigen is a substance which Triggers the immune system Is used as an antidote to poison Lowers body temperature Destroys harmful bacteria Triggers the immune system Is used as an antidote to poison Lowers body temperature Destroys harmful bacteria ANSWER DOWNLOAD EXAMIANS APP
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