Hey man there is nothing but I would like to answer U
Answer:
Double Helix
The structure of DNA is called a double helix.
Brine rejection is a process that occurs when salty water freezes. The salts do not fit in the crystal structure of water ice, so the salt is expelled.
I would say D. Lamarck thought that organisms changed out of need and after a change in the environment and Darwin thought organisms changed by chance when they were born and before there was a change in the environment.
Fossil fuels are definitely non renewable (such as coal and gas) because they cannot immediately be replenished.
Elements such as wind and water are renewable because they're natural and are regularly produced