It depends on what you're asking. If angle a and b are both on a straight line, b would equal 169 degrees because the total has to add up to 180 degrees, but if they are on a right angle, b would equal 79 because it has to add up to 90 degrees.
Answer:
Rivers are the natural resources which provide various resources for the survival of the people. The Columbia river is about 2000km vast in dimension. It is divided and spread into various tributaries among the largest is the snake tributary. The river consists of fresh water and makes it ideal for drinking purposes and fishes of various species present provide food and job opportunities to the native people. The hydro power formed from the river is used to supply Washington and provides continuous power for survival.
I think it’s to their economy
C ) The Type Of Element In The Solid !
At the North and South poles the cool air sinks, and moves towards the equator. The dry air moves to the higher attitude, with trade winds.
