Is acid rain exothermic or endothermic?

6what is the importance of water on earth? a) it keeps the top layer of the geosphere cool b) it allows life to exist c) it provides ice at the poles d) it creates earth's blue color from space

The blackbody curve for a star name zeta is shown below. what is the peak wavelength for this star ?

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