Question: If blowing air into a whistle causes a sound source, then blowing air into a whistle causes a what? Answer choices: - rapid blast of heat - kinetic energy - little beads - activation energy - sound source - wind speed - small rattling - mechanical
Answer: sound source

Question: If most ecosystems get energy from electromagnetic energy, then what gets most energy from electromagnetic energy? Answer choices: - water - waves - rocks - photons - Light - batteries - rays or beams - ecosystems
Answer: ecosystems

Question: If autotrophs make food from inorganic molecules, then autotrophs make food from what? Answer choices: - Converting waste. - members of their own species - Chemical energy - photosynthesis - that material's properties - inorganic molecules - Organic compounds - Chlorophyll
Answer:
inorganic molecules