Answer:
The big bang produced an imprint of leftover heat called CMB radiation
Explanation:
CMD is short for Cosmic Microwave Background
Answer:
D. Particle A orbits the nucleus, and Particle B is located in the nucleus
Explanation:
Here since both particles are of the same atom and particle A is much lighter we can infer that Particle A is electron because electrons are much lighter than protons which are Particle B in this case. Thus, particle A orbits nucleus as an electron does and particle B is in nucleus where protons are.
Covalent bonds share electrons between two atoms.
The answer is D. All of the choices pertain to living organisms
