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UNIT 5 SCIENCE

QuestionAnswer
Which eon occured first? Hadean
What are the outputs of photosynthesis? Oxegyn & gluclose
What supplies the energy needed for photosynthesis to occur? Sunlight
During black Earth, the Earth was too ____ for an atmosphere to exist. Hot
How is the lithosphere connected with photosynthesis? the soil for the plant to get nutrients and minerals from
What was the first organism to perform photosynthesis? Cynobacteria
Which of the following is a greenhouse gas? A. Methan B. Nitrogyn C.Argon D. Oxegyn A. Methane
What was the highest estimated percentage of Oxygen gas to ever be present in our atmosphere? 35%
How many mass extinctions have there been to date? 5
Two things are negatively correlated. What is happening to the variables? one is increasing while the other decreases
Two things are positively correlated. What is happening to the variables? Both are either increasing or decreasing
Which two gasses made up the largest percentage of earth's early atmosphere? Nitrogen and carbon dioxide
What was a major contributor for why Oxygen increased so dramatically in the atmosphere? the burial of organic material in the sediment
Which planets do we use to help us make estimates and find evidence for processes on Earth? inner planets
What will fewer greenhouse gasses do to Earth's atmosphere and surface? decrease the temp
Red Earth was a time when... there were high levels of oxygen in the atmosphere to react with Iron metals, Earth's atmosphere was present and still changing and Iron in the form of iron oxide was being deposited into the sediment.
What are the two types of feedback loops? NEGATIVE & POSITIVE
Negative feedback loops are always trying to maintain a state of... stability or homeostasis
An example of a positive feedback loop would be... A. regulating body temperature B. a runaway train C. Blood pressure D. Thermostate B. a runaway train
Which mass extinction was the largest in terms of % of living organisms eliminated? Permian
When we analyze graphs, what is very important to pay attention to? the range of the y-axis units
What is the process called in which volcanos were putting gasses into the atmosphere? Outgassing
Carbon dioxide increasing in the atmosphere leading to global temperature increase is an example of... Causation or correlation? Causation
What is the correct order of earths stages? Black, Grey, Blue, Red, White
Black earth defenition... Extremely hot containing magma & lava
Grey earth defenition.. Earth began to cool + crust was formed
Blue earth defeniton... Water came to earth from meterites and oceans were formed
Red earth defention... Oxidation in the ocean causing rust turing the earth red
White earth defenition... Known as the snow ball earth because it was white snow and ice was formed and extremely cold weather
Is science capable of making judgement calls about what is right or wrong? WRONG
The Oxygen levels, species present, and atmospheric conditions of early Earth are all... Estimates based on scientific theories
"Snowball Earth" refers to which stage? White Earth
The formation of white Earth is related to which type of feedback loop? Positive feedback loop
What is responsible for the increased formation of ice, radiation reflected, and decrease in temperatures during white Earth? runaway albedo
Oxidation of Iron includes which three inputs? Iron, Oxygen, and water
What is the chemical equation for iron oxide or rust? Fe2O3
Correct order of the 5 mass extincitons... Extinction, Permian Mass Extinction, Triassic-Jurassic Mass Extinction, and Cretaceous-Tertiary (or the K-T) Mass Extinction.
Created by: mikennac
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