The original mission of the Voyager space probes were to D) explore Jupiter and Saturn to gain a better understanding of their planetary systems. However, this goal has changed today with the Voyager Program being used to study the whole outer solar system, and not just specifically Jupiter and Saturn's planetary systems. The Voyager Program was launched in 1977, and the program now also studies the heliosphere (a part of space where the Sun dominates).
Well, to reduce the fossil fuel usage and to store it, to Use renewable energy sources such as wind turbines or solar panels instead of non-renewable sources such as burning fossil fuels.
True. The higher the latitude, the less solar radiation is received by plants.