Turkmenistan's capital city lies along the ________. A) Syr ...

[futuristic]

Turkmenistan's capital city lies along the ________.
 
  A) Syr Darya River
  B) Amu Darya River
  C) Kabul River
  D) Kara Kum Canal

Question 2

What are sunspots? Why are they thought to have a possible effect on climate?
 
  What will be an ideal response?

[amynguyen1221]

Answer to Question 1

D

Answer to Question 2

Sunspots are relatively cool, dark blotches that appear on the surface on the Sun. They are thought to be caused by changes in the Sun's magnetic field and are surrounded by plages, areas of above average solar temperatures. The plages are larger than the sunspots, and the net effect of sunspots is a sun with an above-average surface temperature. Cyclic variations in the amount of sunspots lead to cyclic variations in the amount of incoming solar radiation reaching the Earth. These cycles match up with changes in the Earth's climate on a number of timescales. However, the magnitude of the forcing is much less than the observed changes in climate, so if sunspot cycles are driving climate, it must be with the help of a positive feedback system that has not yet been identified.

[futuristic]

Thanks for the timely response, appreciate it

[cpetit11]

Excellent