1) The three major structural parts of the Earth are
b) lithosphere, atmosphere and crust
c) mantle, crust and atmosphere
2) As a source of raw materials, the Earth’s mantle is
b) Readily accessible today, but of little practical use
c) Possibly accessible in the future, but probably not very useful
d) Possibly accessible in the future, and probably very useful
3) The most abundant element in the earth’s crust is:
4) Silicates are compounds composed of
5) Pure quartz is composed of
6) Asbestos and cigarette smoke act synergistically to increase the risk of
7) Pottery is made non porous by
8) Which of the following materials is the longest lasting
9) One of the major problems associated with the production of glass is
a) The amount of energy required.
b) The amount of sand required.
c) The amount of limestone required.
10) The two major components in cement are
11) The chemistry of cement
a) Is not understood
12) Cement is made from limestone and
13) Bronze is a (an)
14) The first element that was freed from its ore by smelting was probably
15) Concrete is a mixture of cement and
b) Clay and gypsum
e) None of these
16) In the production of iron, coke is used. Coke is
a) Previously heated limestone
c) Black water formed from mixing coal and water
17) Iron is converted to steel
a) By heating iron at high temperature for a long time
b) Adding carbon and other impurities to iron
c) Oxidizing some of the iron to iron oxides
d) Adding sand and heating to a high temperature
e) None of these
18) The name of the ore from which most aluminum is produced is
19) The extraction of aluminum from its ore requires a great deal of
20) If we were to run out of aluminum someday, it would be because we had
a) Converted too much aluminum to another metal
b) Destroyed too much aluminum
21) The largest percentage by mass of solid waste is
22) The chemical law that is the basis of recycling is
a) The law of conservation of mass
b) The law of definate proportions
c) The law of multiple proportions
e) None of these
23) The approximate human population of Earth in 1996 was
d) 10 billion
24) The best way to handle solid waste is to
25) The disadvantage of incineration of waste is
a) Production of a variety of gases
b) Potential raw materials are converted to a less useful state
c) Some prior separation of materials from garbage is required before burning
d) All of the above are potential disadvantages of incineration