photosynthesis, the carbon cycle including fossil fuels and combustion,climate change and its impact Flashcards

(47 cards)

1
Q

What is the primary process by which plants convert sunlight into energy?

A

Photosynthesis

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2
Q

In which organelle does photosynthesis occur?

A

Chloroplast

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3
Q

What are the two main stages of photosynthesis?

A

Light-dependent reactions and Calvin cycle

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4
Q

What is the primary pigment involved in photosynthesis?

A

Chlorophyll

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5
Q

True or False: Photosynthesis occurs only during the day.

A

True

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6
Q

What are the inputs of the photosynthesis equation?

A

Carbon dioxide, water, and sunlight

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7
Q

What is the output of photosynthesis?

A

Glucose and oxygen

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8
Q

Fill in the blank: The formula for photosynthesis is ___ + ___ + light energy → Glucose + ___.

A

6CO2, 6H2O, 6O2

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9
Q

What role do stomata play in photosynthesis?

A

They allow for gas exchange.

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10
Q

What is the carbon cycle?

A

The process by which carbon is exchanged among the atmosphere, oceans, soil, and living organisms.

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11
Q

Which process releases carbon dioxide back into the atmosphere?

A

Combustion

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12
Q

True or False: Fossil fuels are a renewable energy source.

A

False

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13
Q

What are fossil fuels primarily composed of?

A

Carbon

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14
Q

What is the primary source of energy for combustion?

A

Fossil fuels

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15
Q

Fill in the blank: The carbon cycle includes processes such as photosynthesis, respiration, and ___.

A

Combustion

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16
Q

What is a greenhouse gas?

A

Gases that trap heat in the atmosphere.

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17
Q

Which greenhouse gas is most associated with climate change?

A

Carbon dioxide (CO2)

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18
Q

True or False: Deforestation contributes to climate change.

A

True

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19
Q

What is the impact of increased carbon dioxide levels on global temperatures?

A

They lead to an increase in global temperatures.

20
Q

What phenomenon is caused by the accumulation of greenhouse gases?

A

Global warming

21
Q

Fill in the blank: The melting of polar ice caps is a consequence of ___ change.

22
Q

What are some effects of climate change on ecosystems?

A

Habitat loss, species extinction, and altered migration patterns.

23
Q

What is climate resilience?

A

The ability of a system to absorb disturbances and still retain its basic function and structure.

24
Q

What role do oceans play in the carbon cycle?

A

They absorb carbon dioxide from the atmosphere.

25
What is the term for the long-term average of weather in a particular area?
Climate
26
True or False: All plants contribute to the carbon cycle through photosynthesis.
True
27
What are carbon sinks?
Natural systems that absorb more carbon than they release.
28
Fill in the blank: The process of converting carbon dioxide into organic compounds in plants is called ___.
Carbon fixation
29
What is the significance of the Calvin cycle?
It converts carbon dioxide into glucose.
30
Which human activity is the largest source of greenhouse gas emissions?
Burning fossil fuels
31
What is the impact of climate change on weather patterns?
Increased frequency and severity of extreme weather events.
32
Fill in the blank: The increase in average global temperatures is primarily due to human-induced ___.
greenhouse gas emissions
33
True or False: Renewable energy sources can help mitigate climate change.
True
34
What are some examples of renewable energy sources?
Solar, wind, hydro, and geothermal energy.
35
What is carbon footprint?
The total amount of greenhouse gases emitted by an individual, organization, or product.
36
What is the role of photosynthesis in the carbon cycle?
It removes carbon dioxide from the atmosphere.
37
Fill in the blank: The greenhouse effect is a natural process that warms the Earth's surface by trapping ___ gases.
greenhouse
38
What is the potential consequence of ocean acidification?
Harm to marine life, especially organisms with calcium carbonate shells.
39
What is the Paris Agreement?
An international treaty aimed at reducing greenhouse gas emissions.
40
True or False: Climate change affects only the environment.
False
41
What is sustainability?
Meeting the needs of the present without compromising the ability of future generations to meet their own needs.
42
Fill in the blank: The process of photosynthesis occurs in two main stages: the light reactions and the ___ cycle.
Calvin
43
What is the role of transpiration in the water cycle?
It helps in the movement of water from plants to the atmosphere.
44
What is the impact of rising sea levels due to climate change?
Inundation of coastal areas and increased flooding.
45
What is carbon capture and storage?
A technology that captures carbon dioxide emissions and stores it underground.
46
True or False: Climate change can lead to food insecurity.
True
47
What is the importance of biodiversity in the context of climate change?
Biodiversity enhances ecosystem resilience and adaptability.