Which two statements correctly describe the role of a semi conductor in a solar cell

The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is transformed ⇒ as it changes into other forms of energy.

According to the image below, which season is about to begin in the southern hemisphere? a. summer b. autumn c. winter d. spring

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?