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shepuryov [24]
3 years ago
11

What theory did the presence of iridium, an element only found in extraterrestrial objects, in geologic deposits dating to 66 my

a around the world support?
Geography
1 answer:
aalyn [17]3 years ago
4 0

Answer:

The presence of iridium in concentrations higher than 100 times the normal in the Cretaceous–Paleogene (K–Pg) boundary supports the Alvarez Impact Hypothesis.

Explanation:

Father and Son Alvarez argued that since iridium is present in extremely minute quantities on earth, its presence in very high concentrations in this layer which is thought to date back to 66 million years is evidence that an extraterrestrial impact took place which brought the iridium. The high destructive nature of the impact spread the iridium far and wide which deposited on the surface which is why it is present in this layer which dates back to that period.

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How many degrees does Earth rotate to the east every hour?
harina [27]
15 degrees (1 degree every 4 minutes)
7 0
3 years ago
You are reading a proposal requesting $20 million dollars to search for evidence of a crater that caused a mass extinction on Ea
MakcuM [25]

Answer:

Yes, I would fund it if there are no competing proposals.

Explanation:

There are certainly many other projects that are inclined on improving the lives of people. For example, there are Cancer research projects, Alzheimer research projects, research that speak to diabetes, malaria research projects, etc.

It is pragmatic to weigh whether we want to spend money on knowledge for history's sake or channel money into the above research for the sake of improving lives and creating a better future.

Cheers

6 0
3 years ago
What are the reasons for why ancient indo-Europeans came to the European continent
Makovka662 [10]

The reasons as to why the Indo-Europeans migrated to Europe were the better climate conditions, more grazing land and fertile soil, and overpopulation.

Explanation:

The Indo-Europeans were a group of people that formed and lived in the Eurasian Steppes, mostly in the lowlands of what is now Central Asia. Central Asia though was not offering the best living conditions, as the climate was harsh, fertile soil, was lacking, the grazing lands were limited, and the population of the Indo-Europeans was constantly growing. This made numerous groups of these people to migrate in several waves toward other regions, including Europe.

Being a war-like people and superior in combat, the Indo-Europeans found it easy to move into the European territories and settle in. The migration waves were mostly going through the lowlands north of the Black Sea, and through Anatolia and the Balkan Peninsula. Very quickly the Indo-Europeans managed to become dominant in Europe, establish their culture, language, and beliefs.

The main reason for migration were:

  • overpopulation
  • better grazing lands
  • fertile soil
  • better climate

Ethnic families that are believed to have originated from the Indo-Europeans are:

  • Celtic people
  • Germanic people
  • Slavic people
  • Baltic people
  • Italic people
  • Daco-Thracian people
  • Illirian people etc.

Learn more about the Indo-Europeans brainly.com/question/13568388

#learnwithBrainly

3 0
3 years ago
Which religion was spread by the Ottoman Empire? O A. Judaism O B. Islam O C. Christianity O D. Protestantism​
salantis [7]

Answer:

"b" islam

Explanation:

haha you're welcome, have a good day

5 0
3 years ago
Read 2 more answers
Muestran detalles con gran nitidez y se requieren de varias formas para abarcar grandes extensiones​
Lorico [155]

Answer:

Aerial photographs

Explanation:

Aerial photography is a technique where an aerial vehicle mainly a helicopter or any flying objects which can capture clear images or photographs from the top. It looks like a bird eye view. They have many applications such as cartography, environmental studies, movie production, archaeology and many more.

In aerial photography, for a larger shot, the height should be increased at which the photo to be taken.

5 0
3 years ago
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