If ozone is made of oxygen, then what is ozone made of? Answer choices: - oxygen - gas - dangerous - Energy - nitrogen - emissions - radiation - hydrogen
oxygen

If abalance is used for measuring grams of an object, then what is a balance used for measuring in an object? Answer choices: - density - kinetic - volume - simple - forces - grams - Joules - viscosity
grams

If foam materials can be used to keep warm, then foam materials can be used to keep what? Answer choices: - warmth - health - cold - heat - power - rest - warm - energy
warm

If leaves require sunlight, then what requires sunlight? Answer choices: - water - leaves - wood - sugar - gasoline - animals - Nematoda - Jellyfish
leaves