Q: The coordination sphere consists of the central metal ion or atom plus its attached what? Choices: - subunits - strands - molecules - ligands A:
ligands

Q: What is the term for a scalar measure of how quickly an object is moving along this line? Choices: - velocity - motion - force - speed A:
speed

Q: Q: The medieval catapult has a heavy ballast on one end and what on the other end? Choices: - fragment - pivot - propellant - projectile A:
A: projectile

Question: Q: In the nasal cavity, what 2 things trap particles from incoming air? Choices: - phlegm and hair - saliva and hair - mucus and skin - mucus and hair A:
Answer: mucus and hair

*Question*
Q: The electronegativity of an element increases with increasing of what state? Choices: - isolation - evaporation - conduction - oxidation A:
**Answer**
oxidation

(Q).
Q: What kingdom of organisms constitutes up to 20 percent of all living things on earth in mass? Choices: - protists - sporozoans - vertebrates - archaeans A:
(A).
archaeans