20 i need creating a drawing or diagram of one of these three options a: photosynthesis b: cellular respiration c: the carbon cycle plz

What is magnetic flux? explain faraday's law of induction.

Suppose you have three polarizing filters, with the second at an angle of 42∘ to the first and the third at an angle of 90∘ to the first. by what perfect will the original intensity of unpolarized light be reduced to after passing through all three filters?

Would it be correct to say the doppler effect is the apparent change in the speed of a wave due to the motion of the source? be sure to fully explain your position using at least 3 complete content related sentences.