These four ELEMENTS were found in early earth and they make up all living things. A) True
B) False
The four elements:
Hydrogen
Oxygen
Carbon
Nitrogen

True

Air is a mixture of many things; it's not just Oxygen, but Hydrogen, Carbon, and Nitrogen as well are made up of air. Fun fact: Nitrogen is actually more abundant in air

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates

thats a little if u want the answer just look it up on google thats what i do haha : )