According to some estimates, the North Pacific Garbage Patch occupies an area at least the size of ____.
A. Ireland
B. Europe
C. the Mediterranean Sea
D. Texas
E. Several square kilometers
Answer: D
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A projectile that is fired vertically at 11.2 km/s from Earth's surface will
A. escape from Earth. B. go into circular orbit about Earth. C. rise and fall back to Earth's surface. D. follow an uncertain path.
River bottoms and delta regions have a very deep topsoil layer.
Answer the following statement true (T) or false (F)
The process by which the concentration of a pesticide increases through a food chain is called ________
A) biological concentration B) biomagnification C) bioaccumulation D) broad-spectrum effect E) pesticide treadmill effect
What is the formula weight of aluminum sulfate, Al2(SO4 ) 3?
A) 75.1 amu B) 150.2 amu C) 342.2 amu D) 369.7 amu