Ozone and Nutrient Cycling

These flashcards cover key concepts related to ozone and nutrient cycling as discussed in the lecture.

What are the two types of ozone in the atmosphere?

Good ozone occurs in the stratosphere and protects the Earth from UV radiation; bad ozone occurs at ground level (troposphere) and can harm living organisms.

What is a no-zone day?

A day when ozone levels are high enough that people are advised to limit outdoor activities to reduce exposure.

Which chemical group is primarily known to deplete ozone in the atmosphere?

Chlorofluorocarbons (CFCs) are the main chemicals known to deplete ozone.

What are the two units used for measuring ozone concentration?

Nanobar (Nb) and Dobson units (DU) are used to measure ozone concentration.

What is the significant environmental impact of CFCs?

CFCs deplete ozone in the stratosphere, leading to increased UV radiation exposure.

What is an ozone hole?

An area where the ozone concentration is less than 220 Dobson units.

What are the two important factors that determine vegetation?

Temperature and moisture are the two critical factors influencing vegetation types.

What is the difference between the Merian Life Zone and Holdridge Life Zone?

The Merian Life Zone is based on temperature zones, while the Holdridge Life Zone incorporates average annual biotemperature and precipitation.

What is species richness?

The number of different species present in a specific area.

Name two important greenhouse gases that damage the ozone layer.

Chlorofluorocarbons (CFCs) and nitrous oxide.

What are the two types of ozone in the atmosphere?

Good ozone occurs in the stratosphere and protects the Earth from UV radiation; bad ozone occurs at ground level (troposphere) and can harm living organisms.

What is a no-zone day?

A day when ozone levels are high enough that people are advised to limit outdoor activities to reduce exposure.

Which chemical group is primarily known to deplete ozone in the atmosphere?

Chlorofluorocarbons (CFCs) are the main chemicals known to deplete ozone.

What are the two units used for measuring ozone concentration?

Nanobar (Nb) and Dobson units (DU) are used to measure ozone concentration.

What is the significant environmental impact of CFCs?

CFCs deplete ozone in the stratosphere, leading to increased UV radiation exposure.

What is an ozone hole?

An area where the ozone concentration is less than 220 Dobson units.

What are the two important factors that determine vegetation?

Temperature and moisture are the two critical factors influencing vegetation types.

What is the difference between the Merian Life Zone and Holdridge Life Zone?

The Merian Life Zone is based on temperature zones, while the Holdridge Life Zone incorporates average annual biotemperature and precipitation.

What is species richness?

The number of different species present in a specific area.

Name two important greenhouse gases that damage the ozone layer.

Chlorofluorocarbons (CFCs) and nitrous oxide.

What are some adverse health effects of increased UV radiation exposure due to ozone depletion?

Increased risk of skin cancer, cataracts, and weakened immune systems.

What is the primary function of stratospheric (good) ozone?

To absorb harmful ultraviolet (UV) radiation from the sun, preventing most of it from reaching the Earth's surface.

What are some environmental and health harmful effects of ground-level (bad) ozone?

It can cause respiratory problems in humans, damage crops, harm forests, and contribute to smog formation.