If manatees convert chemical energy to mechanical energy, then what do manatees convert into mechanical energy? Answer choices: - major threat to health - chemical energy - direct energy - electrical energy - objects that have mass - fossil fuels - photosynthesis - adding heat
chemical energy

(Question)
If migratory animals are dependent on the Earth's rotating iron core for navigation, then migratory animals are dependent on what feature of the interior of the Earth for navigation? Answer choices: - rotating iron core - sense organs - food and shelter - objects that have mass - shield volcanoes - magma pipes - tectonic plates - biodiversity
(Answer)
rotating iron core

Ques: If contact between shale over long periods of time causes them to smooth, then what smooths over long periods of time due to contact? Answer choices: - oxygen - calcite - h2o - clouds - erosion - shale - bamboo - rivers
Ans: shale

(Q).
If some invertebrates secrete an exoskeleton that builds up to become a reef, then what can secrete an exoskeleton that builds up to become a reef? Answer choices: - graptolites - some invertebrates - remains of prehistoric life - humans - insects - gastropod shells - barnacles - all invertebrates
(A).
some invertebrates

Ques:If roots grow away from a light source, then what grow away from a light source? Answer choices: - stems - roots - buds - fungus - cacti - flowers - fens - salmon

Ans:roots

If moss causes the chemical disintigration of rocks, then what causes the chemical disintigration of rocks.? Answer choices: - trees - rivers - animals - iron - wind - sand - sodium - moss
moss