Ok first of you need to know what a lipid is. A lipid is <span>a class of organic compounds that are fatty acids or their derivatives and are insoluble in water but soluble in organic solvents. This includes waxes, steroids etc. Lipids are important for living cells. Together with carbohydrates and proteins, lipids are the main constituents of plant and animal cells. Cholesterol and triglycerides are also considered lipids. </span>
<span>So I would go with C. </span>
<span>Hope I helped. :) </span>
<span>is warmer then the north and the south poles</span>
Skin cells would not grow back and heal properly
The correct answer for this question is this one: "b. Air pollution"Air pollution can cause markedly shorter life spans, along with chronic respiratory problems in humans and animals.
There exists the same question from other source with the following choices:
<span>a. Water pollution
b. Air pollution
c. Global warming
d. Deforestation
e. Acid rain</span>
