The answer is b. it is a product formed. Photosynthesis is being done with the use of light, carbon dioxide and the water. This then will have an end product which is glucose which then can be use as a food source. Hope this answer would be of help.
C........................................................................
Out the bladder. for girls the egg comes out of the vaginam
You didnt exactly put in any answer options...
But here is my answer: Comparing a desert to Mars, i would say that
A desert has oxygen
And mars has carbon dioxide
A desert has sand
Mars has a rocky surface
Mars is a planet
A desert is not
The things i could think of that a desert and planet mars can relate to...I would say they both have heat and both sometimes have dust storms.