1. difference of microspore mother cell, microspore, pollen (2answer) 2. difference of megaspore mother cell, megaspore, embryo sac (2answer)​

Hurry which of these is true about index fossils? a) are very scarcely found b) used as guides in relative dating c) found in the youngest layer of the rock d) used as reference points in absolute dating

What happens when water’s salinity increases? mass decreases. freezing point decreases. buoyancy of objects decreases. the amount of dissolved minerals decreases.

Natural resources are any materials that humans obtain from the earth to meet our wants and needs.