All Flashcards
What is the role of nitrogen in the atmosphere?
It is the most abundant gas, serving as the atmosphere's main structural component.
Why is oxygen essential for life?
It is necessary for respiration and is produced by photosynthesis.
How does water vapor affect weather patterns?
It contributes to humidity, cloud formation, and precipitation.
What is the impact of increased greenhouse gases?
They trap more heat, leading to increased global temperatures and climate change.
How does the ozone layer protect life on Earth?
It absorbs harmful ultraviolet (UV) radiation from the sun.
Why does temperature increase with altitude in the stratosphere?
Due to the absorption of UV radiation by the ozone layer.
What causes temperature to decrease with altitude in the troposphere?
As air rises, it expands and cools due to decreasing pressure.
What is the significance of the thermosphere?
It traps ions and particles from the sun, contributing to phenomena like auroras.
What is the role of the exosphere?
It is the interface between Earth's atmosphere and outer space, where satellites orbit.
How do human activities affect the concentration of greenhouse gases?
Burning fossil fuels, agriculture, and industrial processes release greenhouse gases into the atmosphere.
What is denitrification?
The process by which nitrogen is released back into the atmosphere.
What is photosynthesis?
The process by which plants convert light energy into chemical energy, producing oxygen.
What are greenhouse gases?
Gases that trap heat in the atmosphere, contributing to global warming.
What is the ozone layer?
A region in the stratosphere that absorbs harmful UV radiation.
What are CFCs?
Chlorofluorocarbons; substances that deplete the ozone layer.
What is the troposphere?
The lowest layer of Earth's atmosphere, where weather occurs.
What is the stratosphere?
The atmospheric layer above the troposphere, containing the ozone layer.
What is the mesosphere?
The atmospheric layer above the stratosphere, characterized by decreasing temperature with altitude.
What is the thermosphere?
The atmospheric layer above the mesosphere, characterized by increasing temperature with altitude.
What is the exosphere?
The outermost layer of Earth's atmosphere, merging with space.
What is the effect of increased greenhouse gases?
Increased global temperatures and climate change.
What was the effect of CFCs on the ozone layer?
Depletion and thinning of the ozone layer.
What is the effect of deforestation on CO2 levels?
Increased CO2 levels in the atmosphere due to reduced carbon sequestration.
What is the effect of burning fossil fuels?
Increased CO2 emissions and contribution to global warming.
What is the effect of increased UV radiation exposure?
Increased risk of skin cancer, cataracts, and damage to ecosystems.
What is the effect of livestock farming?
Increased methane emissions, contributing to global warming.
What is the effect of melting ice caps?
Rising sea levels and habitat loss for polar species.
What is the effect of increased CO2 in the ocean?
Ocean acidification, harming marine life.
What is the effect of transitioning to renewable energy?
Reduced greenhouse gas emissions and decreased reliance on fossil fuels.
What is the effect of improved energy efficiency?
Reduced energy consumption and decreased greenhouse gas emissions.