true or false
a . forest fire are the result of spontaneous combustion
b . friction can be increased by using ball bearings between the moving parts of machine
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Answer:
A. True
B. TRUE
Explanation:
A. Forest fires always start by one of two ways - naturally caused or human caused. Natural fires are generally started by lightning, with a very small percentage started by spontaneous combustion of dry fuel such as sawdust and leaves. On the other hand, human-caused fires can be due to any number of reasons.
B. Friction can be increased by using ball bearing as it is very slippery and spherical which make it friction more.
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