What two structures would provide a positive identification of a plant cell under a microscope? a)cell wall, mitochondria b)plasma membrane, large central vacuole c)ribosomes, chloroplasts d)cell wall, chloroplast

The correct answer is option D which is cell wall, chloroplast.

Explanation:Here positive identification means such features in plant cell which are significantly distinguishes plant cell from animals cells.Cell wall is outer envelope type structure present around the cell membrane. It is not present in animal cells.Chloroplasts are plasmids. These organelles are distinguished structure of photosynthesizing cells.Hence only plant cells have chloroplast while chloroplast are absent i animal cells.So from looking at chloroplast and cell wall we can identify a plant cell.

Earth's rotation cause the global convention current between the equator and the poles

The answer is b metal denting