Identify each of the following statements as being most similar to a hypothesis, a law, of a theory. explain your reasoning.
(a) falling barometric pressure precedes the onset of bad weather.
(b) all life on earth has evolved from a common, primitive organism through the process of natural selection.
(c) my truck's gas mileage has dropped significantly, probably because it's due for a tune-up.

weight of any object is given by

w = m*g

where m is mass of the object and g is the acceleration due to gravity.

for earth the value of g is 9.8 m/s^2 so

w=117.6 n m=12 g=?

117.6=12g => g=9.8 m/s^2

which is the force of gravity on earth.

a). in this case, dh> 0 and sd> 0. if t becomes larger, the term "-tds" will become more negative. at some point, it is possible that -dts will be more negative than the dh is positive, and the reaction will become spontaneous. this is probably the correct answer, but you should look at all of the other possibilities and make sure of that.