A wave's frequency is 2 Hz and its wavelength is 4 m. What is the wave's

speed?

The beginning of a tornado is called

Earth's atmosphere is composed by 78 percent of what gas

Why weren't time zones created until the late 1800's

The subject is science what is the most important factor in determining climate a. longitude b. latitude c. time zone d. hours of daylight

How do political boundaries affect how humans interact with each other?

Some 2.5 million people currently live in sahara, most of these in egypt, mauritania, morocco and algeria true or false

Compare the aquatic species mortality on the east and west coast

The political boundaries of North Africa and the Middle East can best be described as the product of which of the following processes? a. Devolutionb. Imperialismc. Self-determinationd. Democratisatione. Supranationalism

What happens when two oceanic plates collide? What negative impacts for human populations can result from this type of action?

A manufacturers producing 950 light bulb per day