6. In the Middle Ages, most scientists believed that the world was made from four simple elements and that almost everything was a mixture.
Which type of pure substance had they not
yet discovered?

Plz help me... I will seriously give you an award for answering correctly :)

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.

Quiz1. which physical state of nitrogen has the highest entropy? a solid© b gasoc liquid

20 pts ‼️ an unmanned spacecraft travels to mars. mars has a lower strength of gravity than earth. where in the image is the spacecraft’s weight the greatest?