Match the term to its description.

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term
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prominences
a) dark spots appearing from time to time on the sun's surface

solar flares
b) brief eruptions of intense high-energy radiation from the sun's surface

sunspots
c) streams of glowing gas that shoot out from the sun in an arch

convection
d) the rise of hotter, less dense fluid and the sinking of cooler, denser fluid

nah.   i'm just sleepy.

there are no components of a physical goal mentioned on the list of choices that you've provided.

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 =