Your laptop lcd panel is blank when you boot up. you can hear the laptop turn on, and the keyboard backlight is on. you have checked the brightness using the function keys, and that is not the problem. what is an easy next step to determine if the lcd panel has failed? describe how that next step can also if the lcd panel has failed, but the replacement components won't arrive for a week and you still need to use your laptop.

a.   mass number from atomic number

heats surface water up

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 =