1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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.

You might be interested in
Which of the following is not one of the three important developments that was made in agriculture in the past years? A. a growi
hjlf

Answer:

<h3>The correct answer is A.</h3>

Explanation:

<h3>Becuase there was always a large labor force for the agricultural industry so this has not been a major development over the past 50 years.</h3>

6 0
3 years ago
Convert 6 feet to miles​
Gennadij [26K]

Answer:

0.00114 miles

Explanation:

divide length value by 5280

4 0
3 years ago
I WILL GIVE BRAINLIEST, SO ANSWER QUICKLY AND CORRECTLY
gayaneshka [121]

A - Golgi apparatus

B - Nucleolus

C - Endoplasmic reticulum

D - Mitochondrion

E - Ribosomes

F - Lysosome

Hope this helps! Good luck! :D

I haven't done biology is a while, but I do believe that this is correct!

6 0
3 years ago
What main process do all volcanoes have in common, regardless of the specific ways they form?
Leto [7]

Answer:

raising magma

Explanation:

The volcanoes are natural features that are a result of the geologic processes. They form alongside all types of plate boundaries, though they are most commonly found along the subduction zones. Some of the volcanoes actually form in the middle of the tectonic plates, and they are a result of the hot spots. Whichever the way it is, all volcanoes have one common characteristic, the rising magma. The raising magma is actually what makes up the shape of the volcanoes. The magma can come in several different ways, depending on its composition, which in turn results in a particular type of eruption. The magma that cools off, be it on the surface in the form of lava flows, or deeper into the ground, creates igneous rocks, or practically new crust.

3 0
3 years ago
5. Wegener proposed that certain continents including South America and
JulsSmile [24]

Answer:

South Pole

Explanation:

hope this helped :)

7 0
3 years ago
Other questions:
  • Why have many highly educated people created a brain drain by leaving Iran
    14·2 answers
  • Where do tectonic activities, such as earthquakes or volcanic eruptions, tend to occur?
    14·2 answers
  • 5 (10 pts). Describe the difference between a primary producer, primary consumer and secondary or tertiary consumer, and give an
    10·1 answer
  • What is 4.3 in light years
    14·2 answers
  • What town in iran are mountain jews from?
    10·1 answer
  • On a map, which imaginary lines run perpendicular to the equator?
    8·2 answers
  • Reason for industrial localization in Gambia
    15·1 answer
  • If x^2-kx+9=0 has equal roots,find the positive value of k
    5·1 answer
  • Which term above refer to land areas in Israel?
    10·1 answer
  • Saturn emits about 2 1/2 times as much energy as ______.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!