Answer the following question given this paragraph: Geothermal energy is an excellent resource in some parts of the world. Iceland gets about one fourth of its electricity from geothermal sources. In the United States, California leads all states in producing geothermal energy. Geothermal energy in California is concentrated in the northern part of the state. The largest plant is in the Geysers Geothermal Resource Area. Geothermal energy is not economical everywhere. Many parts of the world do not have underground sources of heat that are close enough to the surface for building geothermal power plants. Q: What us state leads all states in producing geothermal energy? Choices: - nevada - Texas - virginia - california A:
california
(Question)
Answer the following question given this paragraph: Carbon has four valence electrons, so it can achieve a full outer energy level by forming four covalent bonds. When it bonds only with hydrogen, it forms compounds called hydrocarbons. Q: How many valence electrons does carbon have? Choices: - one - five - two - four A:
(Answer)
four
Ques: Answer the following question given this paragraph: Less dramatic types of mass wasting move Earth materials slowly down a hillside. Slump is the sudden movement of large blocks of rock and soil down a slope. ( Figure below ). All the material moves together in big chunks. Slumps may happen when a layer of slippery, wet clay is underneath the rock and soil on a hillside. Or they may occur when a river (or road) undercuts a slope. Slump leaves behind crescent-shaped scars on the hillside. Q: What is the term for the sudden movement of large blocks of rock and soil down a slope? Choices: - sludge - torrent - hurricane - slump A:
Ans: slump
(Q).
Answer the following question given this paragraph: Carbon's affinity for covalent bonding means that many distinct and relatively stable organic molecules nevertheless readily form larger, more complex molecules. Any large molecule is referred to as macromolecule (macro- = "large"), and the organic compounds in this section all fit this description. However, some macromolecules are made up of several "copies" of single units called monomer (mono- = "one"; -mer = "part"). Like beads in a long necklace, these monomers link by covalent bonds to form long polymers (poly- = "many"). There are many examples of monomers and polymers among the organic compounds. Monomers form polymers by engaging in dehydration synthesis (see Figure 2.14). As was noted earlier, this reaction results in the release of a molecule of water. Each monomer contributes: One gives up a hydrogen atom and the other gives up a hydroxyl group. Polymers are split into monomers by hydrolysis (-lysis = "rupture"). The bonds between their monomers are broken, via the donation of a molecule of water, which contributes a hydrogen atom to one monomer and a hydroxyl group to the other. Q: Any large molecule is referred to as what? Choices: - cellular - microtubule - polymer - macromolecule A:
(A).
macromolecule
Ques:Answer the following question given this paragraph: Q: Banging on a drum is an example of which type of energy? Choices: - solar. - molecular - potential - mechanical A:

Ans:mechanical
Ques: Answer the following question given this paragraph: Movable joints are also the most common type of joint in your body. Your fingers, toes, hips, elbows, and knees all provide examples of movable joints. The surfaces of bones at movable joints are covered with a smooth layer of cartilage. The cartilage reduces friction between the bones. Ligaments often cross a joint, holding two nones together. For example, there are numerous ligaments connecting the leg bones across the knee joint. Q: What is the most common type of joint in the human body? Choices: - dorsal joints - transverse joints - proximal joints - movable joints A:
Ans:
movable joints