intrusive igneous rock forms when the cooling of magma takes place fast on the top of the Earth's surface. A. True B. False

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?

Free answer. the treaty of versailles ended world war i, but some of the terms of the treaty contributed to the beginning of world war ii. which was one of the terms of the treaty? the answer would be "germany was forces to pay reparations to the allied countries.". i hope this .