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
Scientists theorized that the Ice Ages were caused by _______.
pashok25 [27]

Answer:

ilankovitch cycles describe the collective effects of changes in the Earth's movements on its climate over thousands of years. The term is named for Serbian geophysicist and astronomer Milutin Milanković. In the 1920s, he hypothesized that variations in eccentricity, axial tilt, and precession of the Earth's orbit resulted in cyclical variation in the solar radiation reaching the Earth, and that this orbital forcing strongly influenced climatic patterns on Earth.

\

Explanation:

3 0
3 years ago
As high solar irradiance increases in a region of Earth, the atmosphere in that region heats up. According to the ideal gas law,
ankoles [38]

Answer: When the volume of the air increases, the air becomes less dense and rises. The rising, expanding air then creates an area of low-pressure.

Explanation: Edmentum

6 0
2 years ago
Can someone please complete this
ss7ja [257]
I can't do it all am not at that level
7 0
3 years ago
An empty shipping box weighs 250 grams. The box is then filled with T-10 points
Bumek [7]

Answer:

450

Explanation:

i just learning here good question tho

7 0
2 years ago
Meat and animal products for human consumption come mainly from _____ terrestrial animal species.
PIT_PIT [208]

Answer:

A.  30 %

Explanation:

As there are 6.5 million species on land and 2.2 million in water i.e around 25 % of species including 5 % of freshwater species in oceans, thus the 80% of species on earth make up most of the terrestrial animal composition of meat and other animal products like beef, pork, chicken and other land and animals found in mountains , plains and plateaus they maybe either in Arid, semi arid and desert regions.

5 0
3 years ago
Other questions:
  • If a person is found not guilty in a criminal trial, the police may gather more evidence and conduct a second trial.
    11·2 answers
  • Which organization has encourage free trade , increased economic interdependence, and lessened travel restrictions between Europ
    11·1 answer
  • When is the danger of reduced traction the greatest
    6·1 answer
  • Countries in which Equitor passes​
    7·2 answers
  • When marine geologists collects a core of undeformed ocean-floor sediment, they know that the youngest layer is on the top of th
    15·2 answers
  • Which of these is true of factories in the early 1900s?
    11·2 answers
  • Cómo se relaciona ubicacion con clima tropical​
    7·1 answer
  • how was the mid-Atlantic ridge theory supported by the discovery of magnetic rocks that do not match with Earth's poles?
    14·2 answers
  • Im general,topographic map provide only an estimate of how high the elevation of a hill or mountain may be
    8·2 answers
  • Which statement best summarizes the process of cultural sharing?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!