The opening of the stomata allows water to evaporate from inside the leaf in a process known as transpiration. as this occurs, water molecules cling to one another and pull water in a continuous stream up the stem of the plant from the roots to the leaves. which property of water makes this movement possible?

so easy. just google the electromagnetic waves and it’ll pop up.

it is given that trillions of microbes make up to 1% to 3% of the body mass.

let's take average of this percentage: 2%

consider the average mass of the human body as 70 kg.

then, trillions of microbes would have mass  

therefore, 100 trillion micro-organisms would weigh:

this is an approximate value and could change depending on the mass of the human body and percentage of the microbes present in it.

average mass per microorganism =