Soil can be depleted of nutrients, and an important nutrient commonly added to soil is nitrogen. Given these facts, nitrogen depletion is a condition of some: among the following options: - bushes - humans - animals - soils - disease - legumes - mammals - Birds
soils

Agenerator converts kinetic energy into electrical energy, and electricity is a powerful energy source. Given these facts, generators convert what into a powerful energy source among the following options: - circulatory systems - kinetic energy - engines - Organic compounds - organic molecules - rays or beams - a hydraulic system - photons
kinetic energy

Q: Eyes are used for seeing by animals by sensing light, and infrared light is invisible to the eye. Given these facts, what light can animals not see among the following options: - Sand dollars - electricity - motion - sun's heat - photons - our star - heat - infrared
A: infrared

Question: Aging occurs as cells lose their ability to divide, and death is attributed to the infirmities of old age. Given these facts, what occurs as cells lose their ability to divide among the following options: - illness - Winter - disease - death - youth - die - black holes - cell growth
Answer: death

*Question*
Flagella help prokaryotes move, and cilia are structurally the same as flagella and are actually short flagella. Given these facts, what do prokaryotes have among the following options: - food - rings - alleles - SO2 - cilia - alveoli - nektar - ovaries
**Answer**
cilia

(Q).
Melting is when solids are heated above their melting point, and colloidal systems are suspensions of solid matter in liquids. Given these facts, melting is when something that is part of what is heated above its melting point among the following options: - organic molecules - gas - measuring system - Water expanding - colloidal system - objects that have mass - pot - an object
(A).
colloidal system