biosphere Flashcards
contains the entirety of the
Earth’s living things. It is something referred to us as
the “Zone of life”.
BIOSPHERE
It consists of three main components.
Living organisms:
Physical environment:
Interactions:
includes all plants, animals, fungi, bacteria,
and other microorganisms.
Living organisms:
This includes the atmosphere(air),
Lithosphere(land), and hydrosphere (water).
Physical environment:
The biosphere is characterized by the complex
interactions and inter dependencies between living
organism and the physical environment.
Interactions:
are the world’s major communities.
Biomes
The biosphere is divided into biomes.
❑ Aquatic
❑ Forest
❑ Desert
❑ Tundra
This biome encompasses all bodies of
water on Earth, including freshwater and marine
environments.
❑Aquatic
Aquatic biomes are further divided into
freshwater biomes (e.g.,
rivers, lakes, wetlands)
marine biomes (e.g.,
oceans, coral reefs, estuaries).
are characterized by dense
vegetation dominated by trees. It also includes
tropical rainforests, temperate forests, and boreal
forests (also known as taiga). These biomes play a
crucial role in regulating
❑Forest
Deserts are arid landscapes characterized by
low precipitation and extreme temperatures.
❑Desert
hot deserts
Sahara, Sonoran Desert
cold
deserts
Gobi Desert, Antarctica
is a cold, treeless biome found in
the Arctic and Antarctic regions and at high altitudes. It
is characterized by low temperatures, permafrost, and
short growing seasons. Its vegetation mainly
consists of grasses, mosses, lichens, and shrubs
adapted to cold climates.
❑Tundra
4 crucial roles of the biosphere
Oxygen Cycle
Water Cycle (Hydrological Cycle)
Carbon Cycle
Nitrogen Cycle
it is the The entire cycle can be
summarized as, the oxygen
cycle begins with the process
of photosynthesis in the
presence of sunlight, releases
oxygen back into the
atmosphere, which humans
and animals breathe in oxygen
and breathe out carbon
dioxide, and again linking back
to the plants.
Oxygen Cycle
it is the The water cycle consists of
three major processes: evaporation,
condensation, and precipitation.
Liquid water evaporates into water
vapor, condenses to form clouds,
and precipitates back to earth in the
form of rain and snow.
Water Cycle (Hydrological Cycle)
it is the The carbon cycle is nature’s way of
reusing carbon atoms, which travel from
the atmosphere into organisms in the
Earth and then back into the atmosphere
over and over again.
Carbon Cycle
4 processes of the carbon cycle
❑ Photosynthesis,
❑ Decomposition
❑ Respiration
❑ Combustion.
it is the Nitrogen Cycle is a biogeochemical
process through which nitrogen is
converted into many forms, consecutively
passing from the atmosphere to the soil to
organism and back into the atmosphere.
Nitrogen Cycle
6 processes of the nitrogen cycle
❑ Nitrogen fixation,
❑ Nitrification,
❑ Denitrification,
❑ Decay
❑ Putrefaction
