I'm doing an acrostic poem about river processes for Geography and I can't think what to put next, I need a sentence starting with O and S.

How is mechanical weathering different from chemical weathering?

What is the approxamate straight distance in miles for each leg of that trip?

Which form of erosion would be the slowest? A. some of the sand on a beach washing out to sea B. a wind storm blowing dust to the south C. wind causing the sand in a desert to form a dune D. the flow of water creating a valley

What language is the most widely spoken in the Caribbean, Central America, and South America? American French Portuguese Spanish

The development of Nü Shu in traditional Chinese society is an example of what kind of subcultural language? Gender Age Occupational Status

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