Why does the Sun get brighter with time? What will be an ideal ...

[iveyjurea]

Why does the Sun get brighter with time?
 
  What will be an ideal response?

Question 2

Evaluate the effect of the war in Afghanistan on Pakistan.
 
  What will be an ideal response?

[moormoney]

Answer to Question 1

As the Sun gets older, it converts more of its hydrogen to helium. As the He content increases, the sun's core becomes denser. This density change leads to a higher temperature within the sun, causing nuclear fusion within the core to proceed faster. The faster rate of fusion leads to a greater luminosity.

Answer to Question 2

Answers should mention United States' involvement, refugees, and ethnic conflict.

[iveyjurea]

Gracias!

[tanna.moeller]

Excellent