Answer:
taking data from a population rather than a specific group of people to gather information from
(random and most representative on a large scale of people)
A global network of observation stations measures the round trip time of flight of ultrashort pulses of light to satellites equipped with retroreflectors.
powerful source of data for studies of the solid Earth and its ocean and atmospheric systems
The angles of a triangle always need to add up to 180 degrees.
190 is greater than 180, not equal, so these angles will not form a triangle.
The explanation is that the two continents must have been once connect to form a super continent called Pangaea. The fossil was part of a herd that probably crossed Pangaea. When Pangaea split animals were on both sides. That is why fossils found in South America are found in Africa.
