Q: Q: Which type of weathering causes changes int he rocks materials, chemical or mechanical? Choices: - liquid - nuclear - mineral - chemical A:
A: chemical

Q: Q: Sounds, chemicals, and visual cues are examples of what between animals? Choices: - migration - circulation - procreation - communication A:
A: communication

Q: Q: Exemplified by cesium, which ignites spontaneously in air, pure elements with a high metallic character tend to be very what? Choices: - radiactive - inactive - proactive - reactive A:
A: reactive

Q: Q: What do we call the locations where electrons are likely to be located around the nucleus? Choices: - isotopes - cores - radials - orbitals A:
A: orbitals