Chemicals that cause cancer or called

Compare and contrast physical changes with chemical changes.

How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough

Which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural.question 2 reflects a moral or social value.question 3 refers to something that can be measured.question 4 reflects a question that can’t be observed.