Tropical soils of sub-Saharan Africa are generally low inherent nutrient status due to less addition of organic amendments, high leaching of nutrients, and nutrient fixation through high soil pH. However, Africa is considered as the bread basket of the world with a huge potential of crop growth and yield. As a soil scientist, discuss the underlined statements making reference to causes, effects and how to overcome such problems.

Can you me find area of the shaded region?

Two technicians are discussing how to test a car's exhaust by holding a small piece of paper within an inch of the tailpipe mouth. technician a says that if the paper is vibrating due to a "puffing" output from the tailpipe, this signals a smoothly running engine. technician b says that if the paper is being drawn toward the tailpipe, this could indicate burned exhaust valves. who is correct? a. technician b b. both technicians a and b c. technician a d. neither technicians a or b

Of the population of the united states is obese. a. 10% b. 25% c. 33% d. 50% select the best answer from the choices provided. a b c d