Hey coffee merchant want to make 6 pounds of a blend of coffee costing five dollars per pound. the blender is made it and using a six dollar per pound grade at coffee and a three dollar per pound grade of coffee. how many pounds of each of these grades should be used?

u, your question seems a bit unclear. could you make it a bit more readable?

in 1995, potato plants were taken into space aboard the space shuttle columbia.

step-by-step explanation:

answer: the sun

explanation:

water cycle describes the evaporation of water from earth's surface, formation of clouds and precipitation water back onto the surface of earth. seventy percent of the earth is covered with water in the form of seas and oceans. the heat of the sun causes the evaporation of water from the surface of the ocean. the water vapors rise and condense to form water droplets. the collection of these water droplets form clouds which rain down again.

the evaporation of the oceans surface water as part of the water cycle is caused by the sun