Q: If ecosystems use fusion as energy, then what do ecosystems use as energy? Answer choices: - Nutrients - chemicals - heat - wind - trees - food - glucose - fusion
A: fusion

Q: If direct sunlight can be used to heat a building, then amethod of heating a building might be what? Answer choices: - dangerous - Blizzards - Heated arguments - threatened - major threat to health - Direct sunlight. - Mothballs - slow and inefficient
A: Direct sunlight.

Q: If temperatures fall towards the poles as the sun's rays are no longer perpendicular, then temperatures fall towards the poles as the sun's rays are no longer what? Answer choices: - kinetic energy - negative - visible energy - harmful substances - perpendicular - heat energy - direct energy - reflecting light
A: perpendicular

Q: If fish use lipids to store energy, then what uses lipids to store energy? Answer choices: - fish - humans - water - cats - the Sun - rocks - ferns - Man
A: fish