Sunspots are cooler than the surrounding gas in the photosphere because
A) they are regions where convection carries cooler material downward.
B) there is less fusion occurring there.
C) magnetic fields trap ionized gases that absorb light.
D) strong magnetic fields slow convection and prevent hot plasma from entering the region.
E) magnetic fields lift material from the sunspot and quickly cool the material.
Question 2
Why does increasing the amount a greenhouse gas increase the temperature of a planet?
A) Greenhouse gases absorb visible light. B) Greenhouse gases emit visible light.
C) Greenhouse gases absorb infrared light. D) Greenhouse gases emit infrared light.
History of the number of observed sunspots during the last 250 years, which shows the ~11-year solar
(A) The nine regions of the abdominopelvic cavity. (B) The four regions of the abdomen, which are re
A permanent epicardial pacemaker. The pulse generator can be placed in subcutaneous pockets in the s
Source Regions: Air Masses
The human HLA complex and its different regions.
Regions of the brain