What do scientists propose is the FIRST kind of genetic Information in living things? usatestprep question

DNA
RNA
ATP
POLYPEPTIDE

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water

Match the correct terms to their descriptions a system in which only energy but not matter is exchanged frozen water in snow part of geosphere that includes only soil a thin layer between the troposphere and the stratosphere cryosphere tropopause closed system pedosphere

Earths energy sources include both renewable and nonrenewable resources. name at least three sources of energy that could be used in your house. then describe the ideal energy source for generating most of your homes electricity, and explain why you chose that source. can someone give me some ideas, i’m kinda confused.