When iron rust it reacts with nitrogen from the air
true or false​

Embryos of different species look very similar, which shows that the organisms share a ancestor.

The big bang nucleosynthesis theory states that elements were produced in the first few minutes of the big bang while elements have their origins in the interiors of stars, forming much later in the history of the universe.

Which of the following is not an assumption that scientists must make about the natural world? a. regularity b. causality c. predictability d. plausibility