Answer the following question given this paragraph: The atmosphere is a big part of the water cycle. What do you think would happen to Earth's water without it?. Q: What is the upper-most atmosphere known as? Choices: - xerosphere - exosphere - ionosphere - thermosphere A:
thermosphere

Answer the following question given this paragraph: Some resources can't be renewed. At least, they can't be renewed fast enough to keep up with use. Fossil fuels are an example. It takes millions of years for them to form. We are using them up much more quickly. Elements that are used to produce nuclear power are also non-renewable resources. Uranium, for example, which is rare. Sooner or later, it will run out. Q: Uranium is an example of a non-renewable resource used to produce what type of power? Choices: - water - wind - electrical - nuclear A:
nuclear

Answer the following question given this paragraph: Electric substations have several functions. Many substations distribute electricity from a few high-voltage lines to several lower-voltage lines. They have electric transformers, which use electromagnetic induction to change the voltage of the current. Some transformers increase the voltage; others decrease the voltage. In the Figure below , you can see how both types of transformers are used in an electrical grid. Q: Electric substations have what devices, which use electromagnetic induction to increase or decrease the voltage of the current? Choices: - transistors - generators - tubes - transformers A:
transformers

Answer the following question given this paragraph: The answer depends on if the cell is prokaryotic or eukaryotic. The main difference between the two types of cells is the presence of a nucleus. And in eukaryotic cells, DNA lives in the nucleus. Q: What is the main difference between prokaryotic or eukaryotic cells ? Choices: - the type of metabolic waste - the presence of cell walls - the presence of a Golgi Apparatus - the presence of a nucleus A:
the presence of a nucleus