Which of the following is true statement about speed? a) Speed has no magnitude and direction
b) Speed has magnitude but no direction
c) Speed has both magnitude and direction
D) speed has magnitude but no direction

D) Speed has magnitude but no direction.

hope helpful <3

B and D are both the same statement.

It's the correct one.

first thing first of the answer is with technology. second thing second thing is that the big bang theory did not happened u see they say it did but what they dont realize is that like dinasures are still a round they might deny it but they and look at these 12 foot human skelteons they find lets see didnt the bible say something about giants. hope this peace.

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 =