Answer this plz

Which branches of natural science include the study of an organism that lived 10 million years ago

Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?

In a set amount of time, a battery supplies 25j of energy to an electric circuit that includes two different loads. one of the loads produces 10 j of heat energy during this time interval. how much heat energy is produced by the second load in this time? explain your answer