Topics - Nuclear Power, Nuclear Reactor, Fission , Fusion
1. Consider the following statements:
1. Plutonium-239 can be made artificially
2. Boron is used in a nuclear reactor to absorb unwanted neutrons
3. In nature, the...
Topics - Geography, Climate, Oceans
1. Which one of the following chemical substances exists as a gas under ordinary conditions and room temperature?
2. Polar bears are carnivores and prey on...