There are seven major (bigger) tectonic plates: African Plate, North American Plate, Pacific Plate, Eurasian Plate, Antarctic Plate, Indo-Australian Plate, South American Plate
There are also 10 minor plate such as the Nazca Plate and the Scotia Plate - so a total of 17 plates.
The successful hybridization of rice crops prevented famine in India in the 1960s.
Answer A.
Answer: as thick as single roof
Explanation: The earth is actually about 8000miles thick Xmas, with the atmosphere been 300miles thick. Comparing this or Assuming the earth three story building, it atmosphere would on be as thick as the single roof. The whole of earth needs to be atleast 20 times bigger or thicker than its atmosphere, same should apply to the building and it's roof
C is the answer to question 22
