(Question)
Q: What did sir isaac newton's famous law help people understand? Choices: - radio waves - light - motion - gravity A:
(Answer)
gravity

(Question)
Q: What are the only living organisms that can make their own food? Choices: - bacteria - protozoa - animals - plants A:
(Answer)
plants

(Question)
Q: What is the term for the dark brown or black coating found on exposed desert rocks, which is formed of iron and manganese oxides? Choices: - desert patina - desert shadow - desert rust - desert varnish A:
(Answer)
desert varnish