State the age of a given rock if 6.25% of argon is remaining.​

2.6 billion years

Explanation:

Im sorry if this is wrong im going off the top of my head from a test i took on this a year ago

analyze the map below and answer the question that follows.

what does the map above tell us about the endemity of typhoid fever?

a.

there is greater occurrence of the disease in the western hemisphere.

b.

there is greater occurance of the disease in the northern hemisphere.

c.

countries located in equatorial regions are more likely to have incidents of typhoid fever.

d.

typhoid fever is more rampant among caucasian populations.

answerthey are called the pampas;