The sex hormones are considered from lipids and not from the simple sugars/because they
a. enter in the structure of plasmamembrane
b. are soluble in benzene
c. are soluble in water
d. are responsible for the appearance of secondary sex characters

9. wind power creates pollution. water air soil noise

How do you date a sample of rock that you suspect as being one of the earliest on earth

Johnny rode his bike 4 blicks down the street to his friend's house once he got to his friend house and realized he could not cone out to play he turned aroubd and went back home.what is displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point