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D. has inspired many countries of Western Europe with the idea of a lasting peace.
E. has contributed to the rapid industrialization of the western world
Life, like all other processes that go on in material bodies, requires energy. It differs from some
such processes in the way in which its energy is obtained and from all of them in the way in
which its energy is directed. The energy of the process which goes on in a boiling kettle is
imparted to it continually from without by the fire. The energy of the process which goes on in
a clock is stored in it, but has been imparted to it by mechanical action from without, in the
winding of the spring. But life differs from the other processes, and all processes that go on in
lifeless things, in that its energy is liberated in such a way as to tend to the preservation and
increase of the living being.
16. The writer points out that all processes, living or lifeless,.....
A. need energy
B. impart energy
C. depend on mechanical action
D. are wasteful of energy
17. It is pointed out that every living process ....
A. uses the same amount of energy
B. is directed towards the maintenance of life
C. is aided by an outside source of energy
D. is capable of storing energy
18. The most distinctive feature of mechanical energy, as opposed to life energy, is that it .......
A. is always directed to the preservation of life
B. can be controlled
C. cannot be stored
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