What are the 2 types of high explosives?

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

Use the periodic table to complete this equation that represents nuclear fission processesun - ba c 3 n

Harry lives in a city, and he has a lung condition known as asthma. on certain days, harry has to stay inside because pollutants in the air make it difficult for him to breathe. which of these pollution sources are nonpoint sources that might bother harry if he goes outside? choose the two that apply.