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
Ulleksa [173]
3 years ago
7

What is the relationship between benthic 18o and past climate?

Geography
1 answer:
Hatshy [7]3 years ago
6 0

Answer: Its presence is a good determinant of past hot climates. Its absence can also indicate cold climates.

Explanation:

18O and 16O are oxygen Isotopes, and are used in determining past climates. Heavier than the 16O with 10 neutrons and 8 protons, the 18O does not evaporate as easily and because of this, higher amounts are found in the tropics.

Together, they serve as good determinants of past climate by checking for their ratio in fossils.

Also the 18O isotopes are not present in polar regions as they precipitate before getting to higher altitudes. Cold areas, on the other hand, are high in 16O as they get trapped in glaciers. When climate changes in a location, the quantity of both of these oxygen isotopes also changes.

You might be interested in
What part of the country are you from and what is it like there?
Alex Ar [27]
Kentucky and it is high in taxes . its beautiful in most places but in some places not so beautiful . 


8 0
3 years ago
Read 2 more answers
Define sustainable development and state it’s importance.
GaryK [48]

Answer:

Sustainable development refers to development that meets the needs of the present generation without compromising the needs of the future generations.

Explanation:

This definition of sustainable development was first introduced after the Brundtland Commission Report. It explains that humans social, economic, and environmental activities should be done in balance. Also, the Report further noted the driving force behind humans activities is "needs"; and as such this "needs" should be kept in balance.

7 0
2 years ago
I’m 1976 what did the government of Venezuela do to the oil industry
cupoosta [38]
January 2nd of 1976 Venezuela took it from a privatized business to a national business expanding its economy
3 0
4 years ago
By 2009, American car manufacturers were required to meet minimum fuel efficiency standards that increased the average miles per
sammy [17]
The correct answer is D. decreased energy consumption. 
This measure is implemented for few reasons:
1. The fossil fuels are expendable, so they have to be managed carefully.
2. The economic power of the people will benefit.
3. Decreasing the pollution.
4. Dependence on fossil fuels, thus giving more time and space for developing alternative fuels, like the algae fuel for example...
6 0
3 years ago
Read 2 more answers
Briefly describe three of the theories scientists have proposed to explain natural climate changes.
valkas [14]
I can give you one:
One of the theories (in which i mostly believe in) is the one when every period of time, the climate changes. Now, we are in the warmth period, but after this period, there will be a cooler climate, and keeps repeating every while (think about the ice age)
3 0
4 years ago
Read 2 more answers
Other questions:
  • The ohio missouri mississippi river system is the largest and most significant river system in North America. True or False?
    15·2 answers
  • 7.
    8·2 answers
  • Which of the following is the primary aim of the parti quebecois?
    11·1 answer
  • The amazon rainforest is located in the ___ climate region
    13·2 answers
  • Explain why human error allowed natural disasters to destroy some early cities. Compare modern-day methods for dealing with natu
    13·1 answer
  • Why do flat maps distort shapes of land masses?
    8·1 answer
  • I DIDNT KNOW WHAT ELSE TO POST SO HERE IS MY BACKYARD
    12·1 answer
  • 5p-14=8p+4 please help
    14·1 answer
  • Please!!!!! Need help!
    14·1 answer
  • A carousel ride at a carnival has a circumference of 204.1 meters. What is the diameter?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!