Q: When the wind deposits sand, it forms small hills, what are these hills called? Choices: - sand tunnels - snow banks - mud puddles - sand dunes A:
sand dunes
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Q: When we consider a chemical reaction, we need to take into account both the system and what? Choices: - date - fluctuations - time - sorroundings A:
sorroundings
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Q: A can of warm soda will fizz more because increasing the temperature decreases the what of a gas? Choices: - Acidity - humidity - viscosity - solubility A:
solubility
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Q: What two types of communication do both humans and birds use primarily? Choices: - sensual and auditory - material and auditory - interaction and auditory - visual and auditory A:
visual and auditory
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