What percentage of water on the earth is used for drinking, household needs, community needs, and crop irrigation?

The correct answer to this open question is the following.

Almost 70% of freshwater water on planet Earth is used for irrigation.

Let's have in mind that although 85% of planet Earth is water, it is salty water from the oceans. The rest is water that is considered fresh that can be used by humans. Of that percentage, 70% is used for irrigation in agriculture and the rest is for drinking purposes. That is why is so important to take care of the water because in some places is scarce.

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?

you need to have a picture of the atom that way we can answer it