Ecological foot print. 4.) Fertile soil is a valuable natural resource.
Explanation:
Their study might include d<span>etermining the pros and cons of using the light bulbs.
After they've determined the good sides of using energy-efficient light bulbs, and the bad sides, they will certainly know the effects that these bulbs produce. Therefore they will decide whether it is a good idea to use them or to move on to something else.
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What is true about carbohydrates is that <span>B. Carbohydrates provide energy for living things. Glucose is a monosaccaharide that is the basic source of energy transformed from bodily functions such as glycolysis. Carbohydrates include starch which is found in rice, potatoes which are good sources of energy</span>
I think this statement is true.
Answer:
Magnetic Variation/ Declination I believe.