Sunspot activity tends to follow a cycle of roughly:

A) 11 years. B) 30 years. C) 500 years. D) 100 years. E) 26,000 years.


A

Environmental & Atmospheric Sciences

You might also like to view...

Water budgets vary tremendously from one climate to another

Indicate whether the statement is true or false.

Environmental & Atmospheric Sciences

?At least three million children under the age of 5 die each year from chronic hunger and malnutrition.

Answer the following statement true (T) or false (F)

Environmental & Atmospheric Sciences

Degenerate matter can have densities 1 million times greater than the density of water, and they achieve this density by ________

A) compressing all of the electrons so that they are close to the nucleus B) forming ions that bond electrostatically so that there volume is very small C) fusing all of their atoms into super atoms with very high atomic numbers D) converting the atomic nucleus to a small volume with high mass by expelling all neutrons

Environmental & Atmospheric Sciences

Anticlines and domes create common oil traps.

Answer the following statement true (T) or false (F)

Environmental & Atmospheric Sciences