Answer:
these gases accumulate in the atmosphere and create the heat-reflective layer that keeps the Earth at a livable temperature. These gases form the insulation that keeps the planet warm enough to support life
:CH=CH2, also expressed as H-C=C:
<span>___________________________|__| </span>
<span>___________________________H H </span>
<span>(Sorry about the underscores; the spacing doesn't work if I don't include them) </span>
<span>This compound is a derivative of ethene, which is CH2=CH2. In place of the fourth H atom, CH3 has a lone pair (as shown in the above formula). Or, it can be bonded to another compound as well in that empty spot.</span>
It is non-polar molecule.
CF₄ - dipole moment = 0D
