The other of the four organic molecules is carbohydrates.
All four of them are:
Nucleic Acids (DNA and RNA stuff)
Proteins
Lipids
& Carbohydrates
Place the boxes 10cm apart, if they are closer that concentrates the mass of the boxes more
That's efficiency. There's no law that it must be stated in percent.
5) 204 meters
6)
A) 150 miles
B)241 km
