Paleoclimate

Along with the oxygen isotope ratios, what other molecule do we relate with warmer temperatures?

• increased carbon dioxide

• decreased carbon dioxide

• increased carbon-14

• decreased carbon-14

Tags

NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

Trees tend to grow more during warm years, what is the weakness in using trees to learn about paleoclimates?

• Trees are new in the geologic record

• Tree growth is too unpredictable

• Not all trees have rings

• Trees can only live up to 5000 years

What two types intervals does global climate "seesaw back and forth" between?

• glacial

• interglacial

• paleoclimate

• weather

Which evidence of Continental Drift Theory explains this observation? The presence of glacial striations to countries located near the tropics.

• Apparent Fit of Continents

• Fossil Correlation

• Rock and Mountain Formation

• Paloeclimate Data

Which objective evidences did authors use to define CO2 threshold?

• Climate models and Paleoclimate data from the last 100 million years

• Paleoclimate data from the last 100 million years and some Earth sub-systems moving outside of their stable Holocene state (e.g. thawing icebergs and mountain glaciers)

• Paleoclimate data showing that the Earth used to be ice-free from 100 to 50 million years ago, and then, atmospheric CO2 decreased below 450 ppm +- 100 ppm allowing the polar ice sheets to be established

• Climate models, Paleoclimate data from the last 100 million years and some Earth sub-systems moving outside of their stable Holocene state

Tags

NGSS.HS-ESS3-5

Paleoclimatologists can use historical data to study temperature and precipitation trends of the past. These observations can be found in all of the following EXCEPT...

• Farmers logs

• Newspaper accounts

• Your local TV news

• Travellers' Diaries

Paleoclimatologists can use corals to study the climate of the past. By looking at oxygen isotope ratios they can determine the ___________ of that time period.

• Precipitation

• Temperature 

• Barometric Pressure

• Humidity

Paleoclimatologists can use ice cores to study the climate of the past. Ice cores allow them to get samples of the atmosphere of the past, as well as determine the temperature of the climate in the past. They do this by looking at all of the following EXCEPT... 

• Air Bubbles

• Oxygen Isotopes

• Dust

• Crystal structure

Tags

NGSS.HS-ESS1-6

Paleoclimatologists can use tree rings to study the climate of the past. The size of the ring can help them determine the ________________ of the year the ring represents. 

• Precipitation 

• Temperature 

• Temperature and Precipitation

• Humidity

A paleoclimatologist is most likely to collect data using which of the following?

• Satellites

• Ice cores

• Thermometer readings

• Ocean buoys