<span>The use of genetically altered livestock, such as cows, goats, pigs, and chickens, to produce medically useful products is referred to as pharming. The correct option among all the options that are given in the question is the fourth option or the last option. I hope that the answer has come to your help.</span>
Answer:
- the discovery of the Pangaea Theory.
In 1912 Alfred Wegener (1880-1930) proposed that the continents were once compressed into a single protocontinent which he called Pangaea (meaning "all lands"), and over time they have drifted apart into their current distribution.
The east coast of South America and the west coast of Africa seem to fit together like pieces of a jigsaw puzzle, and Wegener discovered their rock layers “fit” just as clearly. South America and Africa were not the only continents with similar geology. Most all of the other continents fit together too.
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