Ch 1
Ch 2
Ch 1
Ch 2
Ch 1 & 2
100

A non-scaled diagrammatic representation used to convey spatial directions or locations in a simplified form.

A sketch

100

The lowest atmospheric stratum where meteorological events are concentrated.

Troposphere

100

The cartographic representation used to denote hydrological bodies.

Blue

100

The short-term variability in atmospheric conditions observed over a small region.

Weather

100

A two-dimensional scaled abstraction of the Earth’s surface containing topographical or thematic information. 

map

200

A cartographic tool indicating orientation by pointing toward geographic north.

North Line

200

The predominant atmospheric constituent which, despite its abundance, is not directly utilized in human respiration.

Nitrogen

200

A representation wherein 1 cm on the map equates to a significantly larger distance on the ground.

map scale

200

The consistent atmospheric force exerted on all objects at the Earth’s surface.

air pressure

200

The atmospheric layer critical for filtering ultraviolet radiation, thus safeguarding biological systems.

Ozone layer

300

A representation of hills and valleys

Topographic map

300

The intermediary atmospheric layer responsible for incinerating most meteoric debris.

Mesosphere

300

This colour is commonly used on topographical maps to indicate important human-made features such as roads, settlements, and boundaries.

Red

300

This international treaty, signed in 1987 and considered a milestone in environmental diplomacy, was specifically designed to phase out substances responsible for the depletion of the ozone layer.

Montreal Protocol


300

A collection of atmospheric constituents that contribute to terrestrial warming by trapping infrared radiation.

Greenhouse Gases

400

A cartographic depiction with minimal detail, intended for representation of extensive regions.

Small scale map


400

The atmospheric layer characterized by minimal convection and housing the protective ozone zone.

Stratosphere

400

A device or tool used to determine the actual distance along irregular paths or curved lines on a map.

opisometer

400

This environmental phenomenon refers to the gradual thinning of a protective atmospheric layer due to the breakdown of ozone molecules by chlorine and bromine compounds, especially in the stratosphere.

Ozone depletion

400

This unit of measurement quantifies the total amount of ozone in a column of the atmosphere and is defined as the amount that would form a layer 0.01 mm thick at standard temperature and pressure.

Greenhouse effect

500

A standardized graphical representation used to universally depict man-made and natural features in cartography.

Conventional signs and symbols

500

The atmospheric boundary transitioning into outer space, where molecular density is extremely low.

exosphere

500

A highly detailed representation used for planning and engineering, showing a limited geographical area with precision.

Large-scale map

500

These high-energy electromagnetic waves, emitted by the Sun, are largely absorbed by the ozone layer and are known to cause skin damage, cataracts, and DNA mutations with prolonged exposure.

UV rays(Ultraviolet rays)

500

This unit of measurement quantifies the total amount of ozone in a column of the atmosphere and is defined as the amount that would form a layer 0.01 mm thick at standard temperature and pressure.

Dobson unit