The speed of a sound wave depends on properties of the medium. occurs when a sound wave moves at an angle from one medium to another in which its speed is different. A. Diffraction
B. Interference
C. Refraction
D. Resonance

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Explanation:

IG pyt.vick

the temperature in kelvin of 2.0 dm3 of an ideal gas is doubled and its pressure is increased by a factor of four. what is the final volume of the gas

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 =