Scientists<span> can tell by observing the seismic waves that are recorded all over the surface of the </span>earth<span> from distant earthquakes. The seismic waves are reflected (bounced off) </span>layers<span> of different density, and they are refracted (bent) when they enter </span>layers<span> of different density.</span>
1.The area should have at least 5 Million square feet of leasable office space.
2.The area should have more jobs than homes.
3.The area must have 600,000 of leasable retail space.
4.The population perceives it as one place.(The area should have it i.e entertainment, recreation, shopping)
5.The area was nothing like a city 30 years
hi hi hi ok what do u want
Answer:
http://liberalsenateforum.ca/issue/canada-in-the-world/