Plz help

Explain what would happen if the Mid-Atlantic Ridge stopped creating new land.

What is the percent by mass of oxygen in fe2o3

If 3 moles of a compound use 24 j of energy in a reaction, what is the a hreaction in j/mol?

Animals that reproduce sexually either do it through external or internal fertilization. read the following statement and decide if it is true or false. birds reproduce through external reproduction which is because the female will then be able to protect the egg.