I think the correct answer from the choices listed above is option 4. I think it is the process of convection that is responsible for the greatest loss of energy from Earth’s surface into space on a clear night. Convection happens when a mass which contains heat energy is in motion. This happens in wind blowing, oceanic currents and other naturally occurring fluid flows.<span />
Asia or North America is the where the largest lakes are found in the world
The answer is the last one because:
- One has three sides and the other has four which doesn't makes it equal.
- One has three vertices and the other has four vertices.
- Obtuse is an angle greater than 90° but less than 180°, so it doesn't have an obtuse angle.
- Yes, it has one right angle each.