A scientist discovers a new body between the orbit of Neptune and the Kuiper Belt. The object is round and travels in an orbit around Neptune with other space objects. The scientist claims that she has found a new dwarf planet. Where is the scientist’s error?

The object is an asteroid, not a dwarf planet.
The object is a moon, not a dwarf planet.
The object is not a dwarf planet because it travels with other objects.
The object is not a dwarf planet because it is round.

answer; i believe that the correct answer is (d) a very small amount of mass

d.7.5cm is your answer

c) up

hope this

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 =