If wind turbines convert wind energy by using mechanical energy, then what type of energy does a wind turbine use to convert wind energy? Answer choices: - energy - unidirectional - mechanical - thrust - waves - rays or beams - direct energy - adding heat
mechanical

If breezes are caused by uneven heating of the Earth's surface, then what causes breezes? Answer choices: - stable temperatures - a tree falling - uneven heating of the earth - degrees Celsius - Earth's atmosphere circulation - fissures of hot, acidic water - movement of the planets - moon phases
uneven heating of the earth

If some animals are warm-blooded for staying warm in the winter, then some animals are what for staying warm in the winter? Answer choices: - hot headed - dormant - coiled - warm-blooded - cold-blooded - When it's cold - chill minded - bullfrogs
warm-blooded