I’m pretty sure it’s to do with studying history and geography, I know that scientists also use it to study the earths magnetic field
Could I have a Brainly please?!
The answer should be "Island finches resembled mainland finches, but were not the same species."
Carbon (C) is an element
Carbon Dioxide (CO2) is a compound
Hydrogen (H) is an element
Sodium Chloride (NaCl) is a compound
A good way to tell whether something is a compound or an element, is that in a compound there is a mixture of different elements. Like in Carbon Dioxide, the symbol is CO2. This shows the carbon (C) and oxygen (O) together. I hope i worded that well enough and this helps :)