Q: What are the two types of optical telescopes? Choices: - reflecting and recapitulating - reflecting and layering - refracting and compound - reflecting and refracting A:
reflecting and refracting

Q: What is the lowest layer of the atmosphere? Choices: - ionosphere - chromosphere - lithosphere - troposphere A:
troposphere

Q: Q: What is the largest organelle in a eukaryotic cell? Choices: - epidermis - cortex - apoptosis - nucleus A:
A: nucleus

Question: Q: Which atomic model shows that the distances of electrons from the nucleus is not a fixed value? Choices: - the electron model - the distance model - the equivocation model - the quantum model A:
Answer: the quantum model

*Question*
Q: Atoms of the same element that have different masses are called what? Choices: - variations - radioactive - mutations - isotopes A:
**Answer**
isotopes

(Q).
Q: How close a measurement is to the correct value for that measurement is known as what? Choices: - frequency - rate - temperature - accuracy A:
(A).
accuracy