What characteristic can be used to identify a mineral?

The deserts of the sahara and australia are associated with

Aperson with age is more likely to catch diseases that healthy people usually don’t catch. what are these infections called?

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.