As stars get older, before they collapse, they throw off dust, heavy atoms and other materials an form a new A. Constellation
B. Star
C. Rain cloud
D. Nebula

Your friend offers to show you an intrusive igneous rock. which of the following would you expect to see?

When a nucleus absorbs a neutron and then breaks apart, there are many products of the reaction. what is not a product of a nuclear fission reaction

Which of the following warnings would an agricultural chemist tell a farmer who wants to recycle his or her own ammonia? recycling ammonia is a difficult process that sometimes takes weeks. recycling ammonia requires a degree in biochemistry or a related field. recycling ammonia can be harmful because it is highly flammable and toxic. recycling ammonia costs too much money considering the price of the necessary chemicals.