Answer the following question given this paragraph: Some mirrors have a curved rather than flat surface. Curved mirrors can be concave or convex. A concave mirror is shaped like the inside of a bowl. This type of mirror forms either real or virtual images, depending on where the object is placed relative to the focal point. The focal point is the point in front of the mirror where the reflected rays intersect. You can see how concave mirrors form images in Figure below and in the interactive animation at the URL below. The animation allows you to move an object to see how its position affects the image. Concave mirrors are used behind car headlights. They focus the light and make it brighter. They are also used in some telescopes. Q: The point in front of a mirror where the reflected rays intersect is known as what? Choices: - reflective point - boundary point - periodic point - focal point A:
focal point
Answer the following question given this paragraph: Science is based on the analysis of observations made either through our senses or by using special equipment. Science therefore cannot explain anything about the natural world that is beyond what is observable. The term supernatural refers to entities, events, or powers regarded as being beyond nature, in that such things cannot be explained by scientific means. They are not measurable or observable in the same way the natural world is, and are therefore considered to be outside the realm of scientific examination. Q: What term refers to entities, events or powers regarded as being beyond nature, and cannot be explained by scientific means? Choices: - hypothetical - fictional - natural - supernatural A:
supernatural
Q: Answer the following question given this paragraph: Some mammals are strictly herbivores or strictly carnivores . However, most mammals will eat other foods if necessary. Some mammals are omnivores . They routinely eat a variety of both plant and animal foods. Most mammals also feed on a variety of other species. The few exceptions include koalas, which feed only on eucalyptus plants, and giant pandas, which feed only on bamboo. Types of mammalian diets and examples of mammals that eat them are given in Table below . How would you classify your own diet?. Q: Mammals are either herbivores, carnivores or what? Choices: - nematodes - vegetarians - decomposers - omnivores A:
A: omnivores
Question: Answer the following question given this paragraph: Each silicon atom has four valence electrons it shares with other silicon atoms in a crystal. A semiconductor is formed by replacing a few silicon atoms with other atoms that have more or less valence electrons than silicon. Q: Each silicon atom shares how many valence electrons with other silicon atoms in a crystal? Choices: - five - ten - three - four A:
Answer: four
*Question*
Answer the following question given this paragraph: Describe hurricane formation and the damage they cause. Q: Yogurt is made with milk fermented with what? Choices: - viruses - pathogens - disease - bacteria A:
**Answer**
bacteria
*Question*
Answer the following question given this paragraph: Earth has a tremendous amount of water. So why is water sometimes a scarce resource?. Q: Where does the development of a fetus take place? Choices: - The bladder - The vagina - The kidney - the female reproductive system A:
**Answer**
the female reproductive system