Answer the following question given this paragraph: Q: Habitat loss, introduced species, overharvesting, and global change are major threats to what? Choices: - the earth's gravity - the sun - transportation - biodiversity A:
biodiversity
Answer the following question given this paragraph: If you look at your hand, what do you see? Of course, you see skin, which consists of cells. But what are skin cells made of? Like all living cells, they are made of matter. In fact, all things are made of matter. Matter is anything that takes up space and has mass. Matter, in turn, is made up of chemical substances. In this lesson you will learn about the chemical substances that make up living things. Q: What term is used to describe anything that takes up space and has mass? Choices: - size - weight - opacity - matter A:
matter
Q: Answer the following question given this paragraph: Winds on Earth are either global or local. Global winds blow in the same directions all the time. They are created when more solar energy strikes the Equator than the polar regions. More about global wind patterns is described in detail in the concept "Global Wind Belts. ". Q: What type of winds are created when more solar energy strikes the equator than the polar regions? Choices: - arctic winds - equatorial winds - domestic winds - global winds A:
A: global winds
Question: Answer the following question given this paragraph: Chemical energy is stored in wood and released when the wood burns. Q: When wood is burned what kind of energy allows the wood to burn? Choices: - physical - radiation - carbon - chemical A:
Answer: chemical
*Question*
Answer the following question given this paragraph: Ocean waves are among the most impressive waves in the world. They clearly show that waves transfer energy. In the case of ocean waves, energy is transferred through matter. But some waves, called electromagnetic waves, can transfer energy without traveling through matter. These waves can travel through space. You can read more about electromagnetic waves in the chapter "Electromagnetic Radiation. " Waves that transfer energy through matter are the focus of the present chapter. These waves are called mechanical waves. Q: What term describes waves that transfer energy through matter? Choices: - mechanical currents - temperature waves - energy currents - mechanical waves A:
**Answer**
mechanical waves
*Question*
Answer the following question given this paragraph: The digestive system consists of organs that break down food, absorb nutrients, and eliminate waste. The breakdown of food occurs in the process of digestion. Q: What happens during the process of digestion? Choices: - excretion of food - cell division - regurgitation - breakdown of food A:
**Answer**
breakdown of food