The united states is going to see a big population growth compared to japan and other countries because alot of immigration is happening both legally and illegally to the united states and will see a population surge of more than 5 billion population growth within 2 years
has a lower standard of living
It's being estimated that dinosaurs lived on Earth from about 237 million years ago to about 66 million years ago. So answers B and D are definately too "old", while answer A is too "young". I'd pick answer C as it's most probable.
Conformal maps! It is a transformation that preserves local angles.
C. railroad...............
