Which gas do plants primarily absorb during photosynthesis?

Which gas is responsible for the characteristic smell often associated with rain after a dry spell?

Which macronutrient is the body's primary and most efficient source of quick energy?

Which mineral deficiency is commonly associated with goiter due to impaired thyroid hormone production?

Which parasitic disease transmitted by mosquitoes causes recurring fever and chills due to infection of red blood cells?

Which property of water allows insects like water striders to walk on its surface?