Which of the following substances act as a catalyst in the body?
a)carbohydrates
b)nuclear acids
c)lipids
d)enzymes

explanation: it gains negative electrons, therefore becoming negatively charged. as charge cannot be created, nor destroyed, only transferred, this leaves the wool positive. now that they have opposite charges, the two items attract.

space exploration has led to the development and technological improvement of many everyday items. (if this answer is wrong i will find the right answer) : )

може ли да зареждате повече информация, моля