Q: Q: The radius of an atom is defined as one-half the distance between the nuclei in a molecule consisting of two identical atoms joined by what? A: | OPTIONS:
- metallic bond
- ionic bond
- hydrogen bond
- covalent bond
A: covalent bond

Q: Q: Circular water waves decrease in what property as they move away from where a rock is dropped? A: | OPTIONS:
- voltage
- frequency
- mass
- amplitude
A: amplitude

Q: Q: Where is chlorine gas produced? A: | OPTIONS:
- in the nucleus
- carbon cycle
- epidermis
- at the anode
A: at the anode

Q: Q: What are the nonliving matter that living things need called? A: | OPTIONS:
- fluids
- elements
- acids
- nutrients
A: nutrients