The correct answer is 3 billion years old as per the banded iron sample obtained from Canada
I’m not sure about 1 but 2 is D and 3 is A
Answer:
Cohesion
Explanation:
The negative and positive sides of water molecules are attracted to each other and cause water to be attracted together and stick together.
This is called cohesion, when molecules of the same type stick together.
Answer:
DNA is double-stranded, RNA is single-stranded. DNA has the base Thymine, RNA replaces it with Uracil. DNA has deoxyribose sugar, RNA has ribose sugar.
Explanation:
Sucrase. Sucrase is secreted by the small intestine, where it breaks down sucrose (the sugar in table sugar) into fructose and glucose. These are simpler sugars that the body can absorb.
