At which position is the northern hemisphere experiencing winter? Point A
Point B
Point C
Point D

-point A

Explanation:

Why? Well I go to FLVS and this is the answer I chose, which I got right :)

-Hauns5532

answer; i believe the correct answer is (c) /// is a homogeneous mixture of gaseous substance nitrogen,oxygen and smaller amounts of other substancesmixtures can be either ( homogeneous or heterogeneous)plz check first good luck

c. heat could easily travel through the molecules in the air and escape/enter the flask. removing the air slows down the heat transfer.