Look at this description of the sun. Are the following descriptions of the sun chemical or physical properties? 1. The sun is a huge ball of hot spinning gases.

2. The sun has dark magnetic fields called sun spots.

3. The sun causes solar winds.

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?

Answer asap need it by wednesday morning calculate the ph of 0.02m hcl best answer will be brainliest

Listenbase your answer to the question on the information below.nuclear radiation is harmful to living cells, particularly to fast-growing cells, such as cancer cells and blood cells. an external beam of the radiation emitted from a radioisotope can be directed on a small area of a person to destroy cancer cells within the body.cobalt-60 is an artificially produced radioisotope that emits gamma rays and beta particles. one hospital keeps a 100.0-gram sample of cobalt-60 in an appropriate, secure storage container for future cancer treatment.which choice represents the correct product for the beta decay of the co-60? fe-60ni-60fe-61ni-61