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
siniylev [52]
3 years ago
12

Oxygen-18 and oxygen-16 are useful in studying past climates because ________.

Geography
1 answer:
Nookie1986 [14]3 years ago
3 0

Answer:

B. both water and calcite contain oxygen.

Explanation:

water molecules are not equal some are substituted with a heavier counterpart,the standard Oxygen molecule can be substituted by the 18O and hydrogen by H2 given rise to H216O,HD16O and H118O they are termed isotopologues and gave different physical properties.First, over the ocean, the heavier isotopes are less likely to take part in the formation of moisture, leading to lower concentrations of the heavy isotopes in the clouds compared to the mean oceanic water isotopic composition (lower concentration means that the δ18O is more negative). Then, as the air masses move toward the poles, temperature decreases leading to precipitation (either liquid or solid). The heavier isotopes will be preferentially found in the condensed phase than the light ones, which depletes even more the cloud from its heavy isotopes. Finally, in remote areas of the Polar Regions, the isotopic content of the final precipitation results from successive precipitation events. Since, as we saw, the precipitation contents in each isotope are different, each successive precipitation event will have a different isotopic composition, with the final one having the least heavy isotopes – a process called distillation. At each step of the moisture’s path from ocean to cloud to precipitation, the isotopic fractionation is strongly influenced by temperature. This leads to a temperature signal in the isotopic composition of both vapour and precipitation

You might be interested in
The Gobi Desert is in which 2 nations?
yan [13]
I think it’s Mongolia and China. Again I’m not sure so I’m sorry if I got it wrong.
6 0
3 years ago
Arrange the following in order of occurrence.
Nesterboy [21]

1 = 4

2 = 2

3 = 5

4 = 1

5 = 3

hope this helps

7 0
3 years ago
What causes the different seasons on Earth? A.The way heat energy reflects off of Earth because of the angle at which it hits B.
adell [148]

Answer:

C. The fact that Earth rotates around its axis

Explanation:

The seasons are caused by the tilt of the Earth's rotational axis away or toward the sun as it travels through its year-long path around the sun. The Earth has a tilt of 23.5 degrees relative to the "ecliptic plane"

4 0
3 years ago
Read 2 more answers
What border separates Sonora and Chihuahua
kupik [55]

The border separates Sonora and Chihuahua is Natural boundary

8 0
3 years ago
Explain ONE positive effect of devolution. Use a historical or contemporary example to support your argument.
Brums [2.3K]

One positive effect of devolution is that it helps maintain a cohesive state. This means that it helps the state remained unified.

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is meteor<br> plz tell
    14·1 answer
  • The government of Belgium provides three community councils to protect the interests of?
    12·1 answer
  • Oceanic crust spreads at ____1_______, creating new crust and slowly enlarging the ocean basin. _____2_______ are deep valleys a
    8·1 answer
  • In Ecuador and Peru, which group has the most political power and the most money?
    14·1 answer
  • Which of the following does not describe weather?
    14·1 answer
  • Which of the following forests is being defined below? _________ forests stay green all year. A. Tundra B. Coniferous C. Mixed D
    14·2 answers
  • Can someone please help me .. will mark brainliest !
    8·1 answer
  • The Ottoman Empire became weak because ethnic and religious groups _____.
    6·1 answer
  • Where is khuti bari of rabindranath tagore situted?
    8·1 answer
  • What is different about the way molecules move in gases?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!