C. 6.81x10^-4
It is negative 4 because the 6 is 4 digits away from the first 0.
Scientific notation has one number and then the decimal place so it can not be A or E.
When molecules stick together in liquid water it is because the atoms are beginning to slw down and stop so then the moleclues start to stick together in the liquid water causing the moleclues to create a sticky texture.
I think i would chose d, although the others aren't bad either :/ i would say d because of their involvement in the war

↦<u>N</u><u>a</u><u>t</u><u>u</u><u>r</u><u>a</u><u>l</u><u> </u><u>Resources</u><u> </u>are resources like water, air, coal etc. that exist on Earth without an kind of interference by humans. They are highly essential as they support life & the needs of different organisms.
ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ
꧁❣ ʀᴀɪɴʙᴏᴡˢᵃˡᵗ2²2² ࿐
Txt me personnaly and tell me what u need help with\