Sunlight: -is a mixture of all visible light.
-contains only red, yellow, and blue light waves.
-does not contain ultraviolet waves.
-None of the choices are correct

Is a mixture of all visible light.

Explanation:

The sunlight is a mixture of all colors. Rainbows are light from the sun and are made up of red, orange, yellow, green, blue, violet. The sun produce also ultraviolet waves because of its high temperature.

this would be about 43%

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 =