This is false, strobe lightening does not create hot spots. It actually gives a lot of light and isn't hot at all.
Answer:
A. containers A and B represent mixtures
D. an arctic fox is brown in summer and white in winter
Calcium is a chemical element with symbol Ca and atomic number 20. Calcium is a soft gray Group 2 alkaline earth metal, fifth-most-abundant element by mass in the Earth's crust. The ion Ca2+ is also the fifth-most-abundant dissolved ion in seawater by both molarity and mass, after sodium, chloride, magnesium, and sulfate.[5] Free calcium metal is too reactive to occur in nature. Calcium is produced in supernova nucleosynthesis.
