Answer the following question given this paragraph: Only a very small percentage of Earth's water is fresh, liquid water on the surface. But that tiny fraction of water is vital. It is needed by humans, plants, and many other living things. Liquid freshwater flows over Earth's surface in streams and rivers. It also forms ponds, lakes, and wetlands. People use freshwater for drinking, washing, and industry. They also use it for fun. How do you use freshwater for fun?. Q: Only a small percent of earth's water is what type, as opposed to saltwater? Choices: - runoff - groundwater - rainwater - fresh A:
fresh
Answer the following question given this paragraph: The concentration of hydronium ions in a solution is known as acidity . In pure water, the concentration of hydronium ions is very low; only about 1 in 10 million water molecules naturally breaks down to form a hydronium ion. As a result, pure water is essentially neutral. Acidity is measured on a scale called pH , as shown in Figure below . Pure water has a pH of 7, so the point of neutrality on the pH scale is 7. Q: The concentration of hydronium ions in a solution is known as what? Choices: - base - akaline - pH value - acidity A:
acidity
Q: Answer the following question given this paragraph: Wakefulness is regulated by the reticular formation, which is present in the. Q: What is regulated by the reticular formation? Choices: - awkwardness - sleepiness - anxiousness - wakefulness A:
A: wakefulness
Question: Answer the following question given this paragraph: Most plant cells have a large central vacuole . It can make up as much as 90 percent of a plant cell's total volume. The central vacuole is like a large storage container. It may store substances such as water, enzymes, and salts. It may have other roles as well. For example, the central vacuole helps stems and leaves hold their shape. It may also contain pigments that give flowers their colors. Q: Most plant cells have a large central what? Choices: - nuclei - loci - membranes - vacuole A:
Answer: vacuole
*Question*
Answer the following question given this paragraph: Water is recycled constantly through the ecosystem. That means any water you drank today has been around for millions of years. You could be drinking water that was once drunk by George Washington, the first humans, or even the dinosaurs. Q: Water is recycled constantly through which system? Choices: - the hydropshere - the habitat - the troposphere - the ecosystem A:
**Answer**
the ecosystem
(Question)
Answer the following question given this paragraph: The sensory division of the peripheral nervous system carries messages from sense organs and internal organs to the central nervous system. For example, it carries messages about images from the eyes to the brain. Once the messages reach the brain, the brain interprets the information. Q: What system carries messages from sense organs and internal organs to the central nervous system? Choices: - sensitive nervous system - respiratory system - auxiliary nervous system - peripheral nervous system A:
(Answer)
peripheral nervous system