What is one reason london has become an international commercial center?
a.
london was one of the first cities to industrialize.
c.
london is strategically located to be a commercial and shipping center.
b.
london is one of the oldest cities in europe.
d.
all of the above

Look at the diagram showing the different wavelengths in sunlight. which statement describes electromagnetic waves with wavelengths greater than 700 nanometers? they take the form of heat. they can cause skin cancer and sunburn. they are some of the shortest waves. they can be seen by human eyes as visible light.