An iron cube has each edge 15cm long at 20°c what will be; 1,The new surface area of a face when the temperature rises to 80°c
2,The volume at the final temperature.

asthenosphere and convection

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

not copied too! hope this !

joke:

h o h o hope you have a merry christmas!