Answer the following question given this paragraph: Electromagnetic waves on the left side of the Figure above are called radio waves. Radio waves are electromagnetic waves with the longest wavelengths. They may have wavelengths longer than a soccer field. They are also the electromagnetic waves with the lowest frequencies. With their low frequencies, they have the least energy of all electromagnetic waves. Nonetheless, radio waves are very useful. They are used for radio and television broadcasts and many other purposes. You can learn more about radio waves, including how they were discovered, at this URL: http://www. youtube. com/watch?v=al7sFP4C2TY . Q: What are electromagnetic waves with the longest wavelengths called? Choices: - channel waves - sound waves - infrared waves - radio waves A:
radio waves
Answer the following question given this paragraph: Some of the most interesting evidence for evolution comes from vestigial structures . These are body parts that are no longer used but are still present in modern organisms. Examples in humans include tail bones and the appendix. Q: What is the tail bone an example of? Choices: - invertebrate structure - parasitic structure - primordial structure - vestigial structure A:
vestigial structure
Q: Answer the following question given this paragraph: Renewable resources can be renewed as they are used. An example is timber , which comes from trees. New trees can be planted to replace those that are cut down. Sunlight is a renewable resource. It seems we will never run out of that! What are some other renewable resources?. Q: What are resources that don't run out? Choices: - residual resources - general resources - orbital resources - renewable resources A:
A: renewable resources
Question: Answer the following question given this paragraph: Core electrons are the electrons that are closer to the nucleus and therefore do not participate in bonding. Q: What is the name for electrons closer to the nucleus that do not participate in bonding? Choices: - surface electrons - radical electrons - odd electrons - core electrons A:
Answer: core electrons
*Question*
Answer the following question given this paragraph: Q: Where are some of the greatest concentrations of species found? Choices: - at high altitudes - in the arctic - in mould colonies - in the tropics A:
**Answer**
in the tropics
Answer the following question given this paragraph: The Earth is tilted on its axis ( Figure above ). This means that as the Earth rotates, one hemisphere has longer days with shorter nights. At the same time the other hemisphere has shorter days and longer nights. For example, in the Northern hemisphere summer begins on June 21. On this date, the North Pole is pointed directly toward the Sun. This is the longest day and shortest night of the year in the Northern Hemisphere. The South Pole is pointed away from the Sun. This means that the Southern Hemisphere experiences its longest night and shortest day ( Figure below ). Q: The earth is tilted on its what? Choices: - top - compass - radius - axis A:
axis