About how many times larger than the diameter of a red blood cell is the diameter of a grain of sand? write your answer using a power of ten. the red blood cell is 8.4 times 10 to the power of negative 6. the grain of sand is 2.4 times 10 to the power of negative 3. i'm not quite sure how to work this problem out from here.

Step-by-step explanation:

Red blood cell:

Grain of sand:

The "how many times larger" part can be figured out by forming a ratio between the two diameters above:

Note that dividing the powers of ten corresponds to subtracting the denominator power from the numerator power of 10.

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