Which statement describes how the Van Allen belts are formed? when low-energy particles from the Sun bounce off Earth’s magnetic field
when high-energy particles from the Sun bounce off Earth’s magnetic field
when low-energy particles from the Sun are trapped by Earth’s magnetic field
when high-energy particles from the Sun are trapped by Earth’s magnetic field

Llama have 74 chromosomes how many chromosomes will they be found in their gametes explain how you know

Which metals are called noble metals

For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)