in the early 1900s, gasoline-powered tractors became part of the modern farm. in that same era, the modern combine harvester became common, allowing crops to be harvested mechanically and quickly. today, both of these are a part of nearly all farming endeavors.
what can you conclude about agriculture after the end of the 1800s?
a) technology has become unreliable.
b) it became more dependent on technology.
c) farmers are more likely to make a profit today.
d) it has employed more people every year since 1900.

Ascientist successfully predicts the outcome of an experiment. you watch carefully and know he didn't cheat. the scientist's success shows that: a) the scientist knows absolute truth about this experiment; success is not possible unless you know the truthb) the scientist was just lucky; no one ever knows what's going on, so successful predictions require luckc) the scientist may know the truth, or at least know something that is close to the truth, or the scientist may have gotten lucky this time; you can't be absolutely sured) the scientist really was cheating, even though you didn't see the cheating; no one can get things right, except by cheatinge) the scientist spent the night at a particular hotel chain and go a free breakfast, giving the scientist the ability to do amazing things