ASAP One renewable energy source is Ethanol.
Regular gas contains up to 10% ethanol
E-85 for Flex Fuel vehicles is 85% ethanol
Most ethanol in the U. S. comes from corn
Problem:
To make ethanol you need to dissolve 6kg of sugar in 21L of water, mix.
Then add 260g of yeast to mixture. Wait 7-10 days and then distill the ethanol.
How much sugar and yeast do you need to mix with 250ml of water? You must show
your work.

the leaf is an organ of a typical plant, and the main functions are to complete photosynthesis and allow the plant to exchange gas, just like how we have the respiratory system. leaves have the stomata, which collects maintains co2 and o2 levels. this is necessary for cell metabolism. the leaf also collects sunlight using chloroplasts. succinctly, leaves own a pivotal role in sustaining plant life.

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation:

it's filtration, but this is an assumption so my apologies if i got this

the answer is d. 74.02