Which of the following best approximates the percentages of sand, clay, and silt in a sandy loam? use the soil texture table below to answer.

sand 40
clay 30
silt 30

sand 60
clay 10
silt 30

sand 25
clay 15
silt 60

sand 20
clay 60
silt 20

I dont know

Explanation:

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

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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 =