Answer the following question given this paragraph: A mirror is typically made of glass with a shiny metal backing that reflects all the light that strikes it. When a mirror reflects light, it forms an image. An image is a copy of an object that is formed by reflection or refraction. Mirrors may have flat or curved surfaces. The shape of a mirror's surface determines the type of image it forms. For example, some mirrors form real images, and other mirrors form virtual images. What's the difference between real and virtual images?. Q: What is a copy of an image formed by reflection or refraction? Choices: - an example - a photographic image - a mirror image - an image A:
an image
(Question)
Answer the following question given this paragraph: Metalloids are the smallest class of elements. (The other two classes of elements are metals and nonmetals). There are just six metalloids. In addition to silicon, they include boron, germanium, arsenic, antimony, and tellurium. Metalloids fall between metals and nonmetals in the periodic table. They also fall between metals and nonmetals in terms of their properties. Q: Metalloids, metals, and nonmetals are all classes of what? Choices: - compounds - protons - matter - elements A:
(Answer)
elements
Ques: Answer the following question given this paragraph: Q: Is the digestive tract of many sharks longer or shorter than many other vertebrates? Choices: - heavier - longer - narrower - shorter A:
Ans: shorter
(Q).
Answer the following question given this paragraph: Abiotic factors are the nonliving parts of ecosystems. They include air, soil, and other things organisms need. They determine which organisms and how many of them can live in an ecosystem. Q: What are the nonliving parts of ecosystems like soil and air called? Choices: - exemplified factors - irrelevant factors - inorganic factors - abiotic factors A:
(A).
abiotic factors
Ques:Answer the following question given this paragraph: Another benefit of Earth's magnetic field is its use for navigation. People use compasses to detect Earth's magnetic north pole and tell direction. Many animals have natural "compasses" that work just as well. For example, the loggerhead turtle in the Figure below senses the direction and strength of Earth's magnetic field and uses it to navigate along migration routes. Many migratory bird species can also sense the magnetic field and use it for navigation. Recent research suggests that they may have structures in their eyes that let them see Earth's magnetic field as a visual pattern. You can learn more at this URL: http://www. smithsonianmag. com/science-nature/How-Do-Birds-Find-Their-Way-Home. html. Q: What part of earth do many animals use for navigation? Choices: - oceans - atmosphere - molten core - magnetic field A:

Ans:magnetic field
Answer the following question given this paragraph: Fertilization joins two haploid gametes into a diploid zygote. Q: What process joins two haploid gametes into a diploid zygote? Choices: - embryo - fusion - migration - fertilization A:
fertilization