Natural gas burns cleaner than coal. on the other hand, natural gas is 34 times more potent than co2 in terms of global warming. estimate how much cleaner natural gas burns than coal in percentage. there is always some leakage that occurs during natural gas extraction. what percentage (accurate up to one decimal point) of natural gas leakage can be allowed so that natural gas combustion including leakage is still cleaner than coal combustion?

(b) which contains higher levels of vitamin b, oranges or spinach?

explanation:

you can eliminate a, c, and d because they are questions based on opinions.

to improve her experimental investigation, dalila should add a row in which no fertilizer is used. by a having a contrasting row in which no fertilizer is used, she will have a control group that will her understand the effects of the fertilizer in the plant developments vs the development of the plant when no fertilizer is used.