Plant cells undergo photosynthesis to produce glucose, a usable form of chemical energy. the energy produced by plants becomes the base of an energy pyramid. given the situation seen above, what reactant is missing in order for photosynthesis to occur?
a) water
b) ozone
c) chlorophyll
d) radiant energy

The answer is Water, hope this helps :-)

Fossil found in strata reveal that unused body part decrease in size

The answer is atmosphere. there are four spheres of the earth: 1. geosphere (from greek word 'geo' = ground), 2. hydrosphere (from greek word 'hydro' = water), 3. biosphere (from greek word 'bio' = life), and 4. atmosphere (from greek word 'atmo' = air). a magnetosphere is a region of space around astronomical objects controlled by the magnetic field of that object. through the process of elimination, since lightning is present in the air, it can be found in the atmosphere.