A biogeochemical cycle refers to the ________. long-term movement of biogeochemi

Question

A biogeochemical cycle refers to the ________.

long-term movement of biogeochemical minerals through the rock cycle

exchange of chemicals among magmatic and solid-phase systems

transitioning and the residence of specific chemicals among living and nonliving systems

exchange of chemicals between landmasses and the oceans

0.17 points   

QUESTION 2

Which process removes carbon dioxide from the atmosphere?

respiration (breathing) of animals

burning of coal and other fossil fuels

volcanism

photosynthesis

0.17 points   

QUESTION 3

Which of these is the longest-lasting sink for carbon dioxide?

plant tissues and cellulose (the woody parts of plants)

the atmosphere

air bubbles within glacial ice

limestones

0.17 points   

QUESTION 4

Which of the following processes releases carbon dioxide into the atmosphere?

photosynthesis

the weathering of silicate rocks

volcanism

the burial of organic matter

0.17 points   

QUESTION 5

"How does the formation of oil shale deposits, coals, and limestones affect the carbon dioxide (CO2) concentration in Earth s atmosphere?"

All three increase the total CO2 in the atmosphere

All three decrease the total CO2 in the atmosphere.

"The formation of limestones decreases total CO2, while the formation of oil shale and coal increases total CO2."

"The formation of oil shale deposits, coals, and limestones has very little effect"

0.17 points   

QUESTION 6

How are pollen species used to interpret ancient environments?

Each plant species is found in many different climates

Different plant species live in different climates

The ratio of oxygen isotopes can be measured in pollen

Specific plant species directly track the carbon dioxide concentration in the atmosphere.

0.17 points   

QUESTION 7

A crater in Mexico s Yucatan peninsula may be the result of an impact that brought about the extinction of numerous species at the end of the ________ Period.

Silurian

Jurassic

Cretaceous

Tertiary

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QUESTION 8

Increasing ratios of oxygen-18 to oxygen-16 in glacial ice indicate ________.

advancing ice sheets

warming temperatures

increased volcanic emissions

uplift of land surfaces

0.17 points   

QUESTION 9

Which geologic event is NOT suspected as a source of major climate change and mass-extinction events?

the massive eruption of flood basalts

the eruption of supervolcanoes

the impact of asteroids

very large earthquakes

0.17 points   

QUESTION 10

The reliable paleoclimate record from the Antarctic and Greenland ice cores provides information back to approximately ________ years ago.

"700,000"

65 million

5 million

"150,000"

long-term movement of biogeochemical minerals through the rock cycle

exchange of chemicals among magmatic and solid-phase systems

transitioning and the residence of specific chemicals among living and nonliving systems

exchange of chemicals between landmasses and the oceans

Explanation / Answer

1) transitioning and the residence of specific chemicals among living and nonliving systems

this is a process of transferring of chemical substances through biotic and abiotic parts of earth.

2) photosynthesis

during the photosynthesis green plants in take carbondioxide, to prepare food,

3)plant tissues and cellulose (the woody parts of plants)

plants and oceans are the major carbon sink on earth, plants prepare glucos with CO2 , water and sunlight and this stored in the plant body.

4)volcanism

during the volcanic activity tonns of carbon dioxide is adding to the earths atmosphere.

5) All three decrease the total CO2 in the atmosphere.

these are carbonate substances, so as far as they formed in underground as oil, coal,limestone they are actually reducing the atmospheric carbon content.

6) different plant species live in different climates

plant species are formed according to the surrounding environment, so they will differ according to the different climatic systems.

7)Cretaceous

the impact caused the extinction of many species like dinosers.

8)warming temperatures

as the temperature increases evaporation also increases, so O16 decreases and O18 increases in the ocean water.

9) very large earthquakes

all other factors can causes climate change or extinction, by the emission of CO2 and impact of asteroids

10)150,000

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