Q: Why is there a divide between the scientific community and the lay community regarding global…
A: The scientific community is the community of the people in the world who are actively engaged in…
Q: Why are the two great oxygenation events in the earth’s atmosphere seen as key prerequisites for the…
A: The two great oxygenation events or oxygen revolution was a time period when earth's atmosphere and…
Q: What are organisms called that can use carbon dioxide to make their own carbon compounds
A: There are two types of organisms based on mode of nutrition: Autotrophs Heterotrophs
Q: a direct outcome of the formation of the Moon according to the giant impact theory?
A: The giant impact theory suggests that the Moon formed out of the debris left over from a collision…
Q: Was there molecular oxygen in the earth's primitive atmosphere? How has that molecule become…
A: Oxygen is one of the most important molecules or elements for all living organisms. It is…
Q: The first organisms that oxygenated the atmosphere were a. cyanobacteria b. phototrophic organisms…
A: Prokaryotes are cosmopolitan organisms and cover every imaginable surface where there is sufficient…
Q: what was the first element formed in the universe
A: The Big Bang Theory is the leading explanation about how the universe began. It explains that the…
Q: what can you say about the story of earth?
A: Evolution mainly focus on living organism. Evolution means "descent with modification" ( Darwin,…
Q: Where did the oxygen in the atmosphere come from?
A: Step 1 The origin of photosynthesis occurred with the evolution of a light-harvesting pigment…
Q: Why is oxygen important for animals to survive? please provide scientific explanations
A: Animals need oxygen for their survival. The respiratory system works by the exchange of gases.
Q: Before the emergence of life of what gases was the earth's primitive atmosphere constituted?
A: the primitive atmosphere was reducing in nature it had little or no oxygen it was rich in water…
Q: what simple organic molecules were likely the precursors of life? a. water and proteins b. amino…
A: The two important aspects of life are its origin and evolution. The branch of life science, which…
Q: The early atmosphere lacked which gas? 1. carbon dioxide 2. oxygen 3. amonia 4. nitrogen
A: The early atmosphere was likely to contain a lot of carbon dioxide and water vapor because it was…
Q: Scientist have determined that the early Earth had no free oxygen anywhere. Briefly explain what…
A: Scientists suggest that the early atmosphere of the earth was very hot and had no ozone or free…
Q: What was the composition of the earth’s atmosphere at the time of the origin of life, and how did it…
A: Earth was originally in the molten lava state mainly consists of hydrogen sulfide and other…
Q: Discuss why does the average temperature of the atmosphere rise? What might have caused an…
A: Average temperature of atmosphere has been rising with the advent of industrialisation Many…
Q: Which graph best represents the relationship between the amount of pollutants in the air and the…
A: Air pollution is the presence of particulate matter in the environment that are destructive to the…
Q: Explain why an increase in oxygen in the atmosphere to 50 percent would be dangerous to living…
A: The oxygen os the life chemical for all living being if utilized under normal levels.
Q: A) Briefly explain what oxygen is? B) Is the surplus of oxygen in our atmosphere a requirement for…
A: Oxygen is a non metal with atomic number 8. Its concentration is about 21% in the atmosphere.
Q: The biggest living in earth?
A: Introduction Biodiversity refers to the availability of different types of species of different taxa…
Q: How does atmosphere enables life on Earth?
A: The atmosphere is the blanket of the air covering the earth`s surface. Air is a mixture of gases.…
Q: TRUE OR FALSE Radioactivity, electrical energy, heat ,and sound energy from the sun were…
A: Primitive forms of the earth's atmosphere included only a small concentration of free oxygen and was…
Q: Use the kinetic model of gases to explain why light gases, such as H2 and He, are rare in the…
A: depends on the mass and velocity of the gases.
Q: Why are deep ocean waters typically low in oxygen?
A: The biogeochemical cycle that leads to the interconversion of environmental carbon in different…
Q: Why ozone hole forms over Antarctica? How will enhanced ultraviolet Radiations affect us?
A: The ozone hole is more noticeable over the region of Antarctica than anywhere else. It is formed as…
Q: In a discussion, a student makes the following statement regarding the cause of global warming: “The…
A: Global warming can be simply explained as the fastest increase in the average global temperature of…
Q: Based upon your knowledge of photosynthesis and cellular respiration, which of the following types…
A: Photosynthesis is the process by which the plants use water, carbon dioxide and prepare their food…
Q: Outline three characteristics of Stratosphere and two benefits of the mentioned characteristics to…
A: The stratosphere is a layer of the atmosphere that surrounds the Earth. As you ascend, you'll enter…
Q: What was the most significant contribution of early photosynthetic organisms to Earth’s environment?
A: Photosynthesis is preparation of food by the use of light and carbon-dioxide gas.
Q: Which processes remove carbon dioxide from the atmosphere
A: Removal of carbon dioxide from atmosphere involves all those process where carbon dioxide is…
Q: Given that the early atmosphere did not contain oxygen gas, using only the information covered in…
A: Photosynthesis is a process that occurs in plants and also other organisms such as fungi, bacteria,…
Q: The 1st law of energy and conservation says that matter cannot be created or destroyed, but you’re a…
A: The increase in size and changes in shape of a developing organism depend on the increase in the…
Q: What were the consequences of an “oxygenated” Earth to life and to the atmosphere itself? (explain)
A: About 2.4 - 2.0 billion years ago, during the paleoproterozoic era, there was a time phase when the…
Q: In stratosphere, which elements acts as a catalyst in degradation of ozone and release of molecular…
A: Ozone refers to highly reactive compound present in the Earth's upper atmosphere. It includes three…
Q: Stars are objects in space that produce their own heat and light. Where would the greatest number…
A: Star It is an astronomical object which have luminous spheroid of plasma held together by its own…
Q: How does the ocean remove carbon dioxide from Earth’s atmosphere? What role do tiny marine…
A: The oceans store a large amount of green house gases and carbon dioxide within them. The carbon…
Q: What will happen, if there was no CO2 in the earth's atmosphere?
A: The carbon dioxide gas is composed of carbon dioxide and oxygen molecules and is also a colorless…
Q: a) Why is the level of carbon dioxide in the atmosphere increasing today? b) How does an increased…
A: The temperature of the earth's surface is increasing due to a number of reasons. Main factors…
Q: How does carbon go from the atmosphere into living things?
A: Living things are those things that can do respiration, reproduction etc. Example are animals,…
Q: What do you think is/are the reasons on the rise and decline of oxygen levels on earth as years go…
A: Earth consist of atmosphere and this atmosphere consist of troposphere,staratosphere,mesosphere and…
Q: Students wish to study the effect of elevation above sea level on air temperature and air pressure.…
A: Thermometer And Barometer
Q: Outline three characteristics of exosphere
A: The exosphere is a thin , atmospheric like layer which is surrounded by our planet. It is the upper…
Q: What is one way humans put carbon into the air? Group of answer choices a. Surfing the internet b.…
A: Carbon is one of the important elements of living things as well as nature. It forms 49% of the dry…
Q: Explain what caused the increase in oxygen in Earth’s air andwaters
A: Answer :- The atmosphere of the Earth contains around 78 percent nitrogen and 21% oxygen. There are…
Q: How is earths atmosphere heated ?
A: Atmosphere is a layer or a set of layers of gases surrounding the earth.It is held near the surface…
What were the consequences of an “oxygenated” Earth to life and to the atmosphere itself? (explain constructively)
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- What will happen, if there was no CO2 in the earth's atmosphere?If space exploration revealed a planet that had the water, sunlight, and climate, necessary to maintain good plant life, would it be possible to produce oxygen and food necessary to sustain human life?Why are deep ocean waters typically low in oxygen?
- At a time before life existed on Earth, our planet's atmosphere contained extremely little or no Question 2 options: a) nitrogen gases b) water vapor c) carbon dioxide d) gaseous oxygen e) noxious gasesName the hole in the ozone layer due to depletion of ozone.Why is it important the concentration of CO2 in the atmosphere?
- What do you think is/are the reasons on the rise and decline of oxygen levels on earth as years go by?In stratosphere, which elements acts as a catalyst in degradation of ozone and release of molecular oxygen?Discuss why does the average temperature of the atmosphere rise? What might have caused an unprecedented increase in its level?