PLEASE HELP ME!

The atmospheres of the planets in our solar system differ in their physical compositions. Based on evidence, which planet would you claim to have the thickest atmosphere?

A. a planet with a hot atmosphere and weak gravity

B. a planet with a hot atmosphere and strong gravity

C. a planet with a cold atmosphere and weak gravity

D. a planet with a cold atmosphere and strong gravity

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem