1. Name 2/6 things you can learn about a star by looking at its light in a telescope. 2. An infrared pictures that uses different colors to show variations in temperature in called a
3. If you know the wavelength of the color emitted by a dense object you know it's
4. Name the colors of the visible light spectrum in order from highest energy to lowest energy.​

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it

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 =