Question

how long does it take for earth to complete one revolution around the sun? 24 hours 30 days 365 days 23 hours how does the angle of sunlight affect the concentration of solar energy received? higher angles decrease solar energy concentration lower angles increase solar energy concentration higher angles increase solar energy concentration the angle has no effect on solar energy concentration

Explanation:

• For the first question: Earth's revolution around the Sun is a well - known astronomical fact. A full revolution takes approximately 365 days (plus about 6 hours, which is why we have leap years). 24 hours is the time for Earth's rotation (a day), 30 days is roughly a month (but not related to revolution), and 23 hours is incorrect for revolution.
• For the second question: The angle of sunlight is related to the concentration of solar energy. When the Sun's rays hit at a higher angle (more perpendicular), the energy is more concentrated. For example, at the equator (where sunlight is more directly overhead - higher angle), it is generally warmer (more concentrated solar energy) compared to polar regions (where sunlight hits at a lower angle - more spread out, less concentrated).

Answer:

• First question: 365 days
• Second question: Higher angles increase solar energy concentration