Q: What system of the body is generally responsible for breathing? Choices: - excretory - integumentary - cardiac - respiratory system A:
respiratory system

Q: What are the light highlands of the moon called? Choices: - mariae - kepler hills - craters - terrae A:
terrae

Q: Q: What supports most of earth's ecosystems? Choices: - oceans - moon - crust - sun A:
A: sun

Question: Q: What strong and lightweight manmade material is derived from hydrocarbons and used in ropes, tents and parachutes? Choices: - styrofoam - cellophane - aluminum - nylon A:
Answer: nylon

*Question*
Q: Name the fever that is caused by a virus that has antigens similar to molecules in human heart tissues. Choices: - Dengue fever - yellow fever - chronic fever - rheumatic fever A:
**Answer**
rheumatic fever

Q: In which kind of water can less carbon dioxide dissolve? Choices: - cool water - tap water - salt water - warm water A:
warm water