Quiz 20

Quiz 20 Questions

  1. If the sky is clear and the wind is dry, are you more likely to be within a high pressure system or a low pressure system?
  2. When a flame becomes hot enough to ionise the gasses it?s giving off, what is produced?
  3. True or False. The crust makes up less than 1% of the volume of the Earth.
  4. How many hearts does a squid have?
  5. What is the average speed of the world?s most powerful ocean current in centimetres per second: a) Less than 30, b) 30-50, c) 50-100, d) 100+?

Quiz Answers

  1. High pressure system. It will generally be warmer as well.
  2. Plasma. It is the most common form of matter in the universe and all the stars are made up of it.
  3. True.
  4. They?ve got three strong hearts. Two green hearts that feed the gills and a larger, systemic heart that pumps blood through the body.
  5. a) The most powerful current runs from Antarctica to the equator at around 20 centimetres per second, according to brand new research by CSIRO and partners in Australia and Japan. This might not sound fast, but it carries about 12 million cubic metres of water per second, operates more than three kilometres below the ocean?s surface and carries water that is less than zero degrees Celsius.