Description The Fermi paradox, named after Italian-American physicist Enrico Fermi, is the apparent contradiction between the lack of evidence for extraterrestrial civilizations and various high estimates for their probability. Michael H. Hart formalized the basic points of the argument in a 1975 paper.
Answer:
C) Ranching.
Explanation:
Basque settlers are settlers who have their origins in Spanish, Mexican, and other Hispanic roots. The Intermontane West were settlements of Native Americans and they were surrounded by rivers. The Spanish people were the first European settlers in this region. They made their living through ranching.
Today, the Intermontane West comprises of cities like Las Vegas, Utah, Nevada, etc. Tourism is also prevalent in this region as there are many interesting sights in the region. The region is surrounded by mountains and plateaus.
Answer:
2.62 years
Explanation:
The half life of a material is the time taken for half of the number of radioactive atoms in a radioactive material to remain.
If a radioactive material is cut into pieces, each piece has the same half life as the whole material.
Hence, if Strontium-147 is cut into pieces, each piece will have a half life of 2.62 years, just as the whole material.
Answer:
False
Explanation:
The given statement is false,the Aging of sedimentary rocks can be easily done with direct dating of the Volcanic Ash layers. Moreover, sedimentary are layered the older layers are at the bottom and the younger layer are at the top. Although sedimentary rocks do not contain radio active element but their absolute age can be determine by direct dating of the Volcanic Ash layers.
The tiny, solid particles you find in the atmosphere serve as cloud condensation nuclei.
You see, in order for water to condense, the water must have a direct object, grammatically speaking.
<span>Your answer: Tiny, solid particles in the atmosphere play a role in cloud formation by providing the object upon which water may condense to form clouds.</span>
