Answer the following question given this paragraph: Fresh water is also preserved by purifying wastewater. Wastewater is water that has been used for cleaning, washing, flushing, or manufacturing. It includes the water that goes down your shower drain and that is flushed down your toilet. Instead of dumping wastewater directly into rivers, wastewater can be purified at a water treatment plant ( Figure below ). When wastewater is recycled, waterborne diseases caused by pathogens in sewage can be prevented. What are some ways you can save water in your own house?. Q: What do we call water that has been used for cleaning, washing, flushing, or manufacturing? A:
OPTIONS:
- Grey water
- sewage
- groundwater
- wastewater
wastewater

Answer the following question given this paragraph: atoms held together by covalent bonds; they tend to be very hard and have high melting points. Metallic solids have unusual properties: in addition to having high thermal and electrical conductivity and being malleable and ductile, they exhibit luster, a shiny surface that reflects light. An alloy is a mixture of metals that has bulk metallic properties different from those of its constituent elements. Alloys can be formed by substituting one metal atom for another of similar size in the lattice (substitutional alloys), by inserting smaller atoms into holes in the metal lattice (interstitial alloys), or by a combination of both. Although the elemental composition of most alloys can vary over wide ranges, certain metals combine in only fixed proportions to form intermetallic compounds with unique properties. Q: An alloy is a mixture of metals that has bulk metallic properties different from those of its what? A:
OPTIONS:
- system elements
- nuclear elements
- mineral elements
- constituent elements

Answer: constituent elements

Question: Answer the following question given this paragraph: Metamorphism does not cause a rock to melt completely. It only causes the minerals to change by heat or pressure. If the rock melts completely, it will cool to become an igneous rock. Q: What changes from heat or pressure during metamorphism? A:
OPTIONS:
- carbohydrates
- grains
- fossils
- minerals
Answer: minerals

input with options: Answer the following question given this paragraph: Uncontrolled diabetes may damage capillaries of nephrons. As a result, the kidneys lose much of their ability to filter blood. This is called kidney failure . The only cure for kidney failure is a kidney transplant, but it can be treated with dialysis. Dialysis is a medical procedure in which blood is filtered through a machine (see Figure below ). Q: What is a popular treatment for kidney failure? A:
OPTIONS:
- psychotherapy
- metastasis
- electrolysis
- dialysis
output: dialysis

Q: Answer the following question given this paragraph: Metamorphism does not cause a rock to melt completely. It only causes the minerals to change by heat or pressure. Q: What process does not cause a rock to melt completely, instead causing the minerals to change by heat or pressure? A:

OPTIONS:
- sedimentation
- oxidation
- igneous extrusion
- metamorphism

A: metamorphism

Answer the following question given this paragraph: Energy is conserved in a closed system. That is, if you add up all the energy of an object(s) at one time it will equal all the energy of said object(s) at a later time. A closed system is a system where no energy is transferred in or out. The total energy of the universe is a constant (i. e. it does not change). The problems below do not consider the situation of energy transfer (called work). So friction and other sources where energy leaves the system are not present. Thus, one simply adds up all the potential energy and kinetic energy before and sets it equal to the addition of the total potential energy and kinetic energy after . Q: What happens to energy in a closed system? A:
OPTIONS:
- is replicated
- is destroyed
- is wasted
- is conserved
is conserved