6.Which is true about the equation for photosynthesis? a. Oxygen is a product
b. It shows that light energy is converted into chemical energy.
c. Glucose is a reactant.
d. All of the above

In the process of photosynthesis...

a.Oxygen is a product

b.It shows that light energy is converted into chemical energy.

Explanation:

Photosynthesis is a biochemical process in bacteria, plants, and other eukaryotic organisms that is essential to the production of fuel. In the form of glucose molecules, chemical energy is formed from:

Inorganic carbon is fixed by plants during photosynthesis into high-energy carbohydrates and oxygen as waste ...

6 CO2 + 6 H2O + light  →  C6H12O6 + 6 O2

Carbon Dioxide + Water + Light       Glucose + Oxygen

c. earths continental crust is thicker than its lithosphere.

because, the lithosphere is the outermost layer of the earth/ 100 km thick and is defined by its machanical properties.the lithosphere contains oceanic and continental crust that varies in age and thickness across locations and geologic time. the lithosphere is the coolest layer of the earth in terms of temperature. the term lithosphere should not be confused with the use of "geosphere" which is used to indicate all of earth systems, including the atmosphere, hydrosphere   and biosphere. the surface of the earth can be divided into the continental crust and the oceanic crust.   the continental crust is made mostly of granite while the oceanic crust is made of basalt. the average thickness of the continental crust is 25 miles and the average thickness of the oceanic crust is 5 miles.   three types of rock, igneous, sedimentary, and metamorphic, make up the surface of the earth. that's why 3 option is preferable.