directions: use the diagram to the right to answer questions 65 - 78. 65. what element is being recycled in this diagram? 66. identify \a\ in the diagram. 67. identify \b\ in the diagram. 68. identify \c\ in the diagram. 69. identify \d\ in the diagram. 70. identify \e\ in the diagram. 71. identify \f\ in the diagram. 72. identify \g\ in the diagram. 73. in what process do green plants convert carbon dioxide and water into molecules of glucose? 74. all living things convert molecules of glucose into molecules of atp. what is the name of this process? 75. an imbalance in this cycle can lead to heat being trapped in earth’s atmosphere. this is known by what name? 76. why do all living things need carbon? 77. what process removes carbon dioxide from the air? 78. list two human activities that increase the levels of carbon dioxide in the air.

Question

Accepted Answer

### Question 65
# Brief Explanations:
The diagram likely represents the carbon cycle (with elements like plants, animals, factories, etc.). In the carbon cycle, carbon is recycled through processes like photosynthesis, respiration, decomposition, and human activities. So the element being recycled is carbon.
# Answer:
Carbon

### Question 66
# Brief Explanations:
In a carbon cycle diagram, "A" (associated with factories) is likely representing the release of carbon dioxide from industrial processes (combustion of fossil fuels), so "A" is Carbon Dioxide (from factory emissions).
# Answer:
Carbon Dioxide (from factory emissions)

### Question 67
# Brief Explanations:
In the carbon cycle, "B" (between the sky and plants/factories/animals) is typically carbon dioxide in the atmosphere, as it's the form of carbon that cycles between the atmosphere and organisms.
# Answer:
Atmospheric Carbon Dioxide (or just Carbon Dioxide in the atmosphere)

### Question 68
# Brief Explanations:
"C" is associated with a tree and the sun, so this is photosynthesis - the process where plants take in carbon dioxide and sunlight to make glucose. So "C" represents a plant (or tree) performing Photosynthesis.
# Answer:
Plant (Tree) performing Photosynthesis

### Question 69
# Brief Explanations:
"D" is associated with a tree and an upward arrow (releasing gas), so this is respiration - trees (plants) respire, releasing carbon dioxide. So "D" is Plant (Tree) Respiration.
# Answer:
Plant (Tree) Respiration

### Question 70
# Brief Explanations:
"E" is associated with a cow (animal), and an upward arrow (releasing gas), so this is animal respiration - animals respire, releasing carbon dioxide. So "E" is Animal (Cow) Respiration.
# Answer:
Animal (Cow) Respiration

### Question 71
# Brief Explanations:
"F" is associated with the ground (soil) and arrows from plants, animals, etc., so this is decomposition - dead organic matter (from plants, animals) is decomposed by decomposers, releasing carbon back into the soil or atmosphere. So "F" is Decomposition (by decomposers) or Dead Organic Matter (being decomposed).
# Answer:
Decomposition (or Dead Organic Matter)

### Question 72
# Brief Explanations:
"G" is associated with the soil and downward arrows from "F", so this is the soil (or geosphere) storing carbon, or it could be fossil fuels (if considering long - term carbon storage), but more likely soil carbon or decomposers in the soil. However, in the carbon cycle, "G" can represent the soil (or the reservoir of carbon in the soil/geosphere).
# Answer:
Soil (or Geosphere Carbon Reservoir)

### Question 73
# Brief Explanations:
Green plants convert carbon dioxide and water into glucose using sunlight, and this process is called photosynthesis. The chemical equation is $6CO_2 + 6H_2O\xrightarrow[Chlorophyll]{Sunlight}C_6H_{12}O_6 + 6O_2$.
# Answer:
Photosynthesis

### Question 74
# Brief Explanations:
All living things convert glucose into ATP (adenosine triphosphate) through the process of cellular respiration. In cellular respiration, glucose is broken down (in the presence or absence of oxygen) to release energy that is used to make ATP. The general equation for aerobic respiration is $C_6H_{12}O_6+6O_2
ightarrow 6CO_2 + 6H_2O+ATP$.
# Answer:
Cellular Respiration

### Question 75
# Brief Explanations:
An imbalance in the carbon cycle (excess carbon dioxide in the atmosphere) leads to heat being trapped in Earth's atmosphere. This phenomenon is known as the greenhouse effect. Greenhouse gases (like carbon dioxide) trap infrared radiation from the sun, preventing it from escaping the Earth's atmosphere.
# Answer:
Greenhouse Effect

### Question 76
# Brief Explanations:
All living things need carbon because carbon is a key component of organic molecules. These include carbohydrates (which provide energy), lipids (for energy storage and cell membranes), proteins (for structure and function), and nucleic acids (for genetic information). Carbon - based molecules form the basis of all life on Earth (carbon - based life).
# Answer:
Carbon is a key component of organic molecules (carbohydrates, lipids, proteins, nucleic acids) that are essential for life processes like energy storage, structure, and genetic information.

### Question 77
# Brief Explanations:
The process that removes carbon dioxide from the air is photosynthesis. Plants (and some other organisms) take in carbon dioxide from the atmosphere and use it, along with water and sunlight, to produce glucose and oxygen. The reaction is $6CO_2 + 6H_2O\xrightarrow[Chlorophyll]{Sunlight}C_6H_{12}O_6 + 6O_2$.
# Answer:
Photosynthesis

### Question 78
# Brief Explanations:
Two human activities that increase carbon dioxide levels in the air are: 1. Burning fossil fuels (like coal, oil, and natural gas) for energy (in factories, vehicles, power plants). When fossil fuels are burned, the carbon stored in them is released as carbon dioxide. 2. Deforestation - cutting down trees reduces the number of plants available to perform photosynthesis (removing carbon dioxide from the air), and when trees are burned or decomposed, they release carbon dioxide.
# Answer:
1. Burning fossil fuels (e.g., coal, oil, gas) for energy.
2. Deforestation (cutting down trees).

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Question 65

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