If astronauts require preserved meals for extended flights, then what do astronauts need for extended flights? Answer choices: - hydrogen and oxygen - preserved meals - solid, liquid, gas - small meals - fresh meals - Dehydration - nutrients - surprise meals
preserved meals

If fat is used to provide warmth and security, then fat is used to provide warmth and what? Answer choices: - heat energy - energy - security - disease - concern - support - flavor - growth
security

If hammers can cause debris, then what can be used to make debris? Answer choices: - erosion - rivers - a hammer - heat - wind - water pump - c-clamp - screwdriver
a hammer

If much of protein transport in a cell requires energy, then much of protein transport in a cell requires what? Answer choices: - protons - recycling - oxygen - energy - atoms - Nutrients - walls - Energy.
energy