PRELIM - PPT 1 Flashcards
is defined as surroundings that have the conditions for living organisms to operate
ENVIRONMENT
Environment includes the living and nonliving components such as…
air, water, and energy.
The word Environment is derived from the French word “____” which means “____”.
Environ = surrounding
The natural environment consist of four interlinking systems namely
Atmosphere
Hydrosphere
Lithosphere
Biosphere
____ includes all water bodies; functions in a cyclic nature, which is termed as hydrological cycle or water cycle.
Hydrosphere
Hydrosphere includes a body of waters such as…
Lakes
Ponds
Rivers
Streams
Ocean
____ means the mantle of rocks constituting the earth’s crust
Lithosphere
Lithosphere mainly consists of…
Soil
Earth rocks
Mountains
Lithosphere is divided into three layers …
Crust
Mantle
Core (Inner and Outer Core)
____ is otherwise known as the life layer, it refers to all organisms on the earth’s surface and their interaction with water and air.
Biosphere
Biosphere consists of…
Plants
Animals
Micro-organisms
____ is the cover of the air, that envelope the earth
Atmosphere
Atmosphere contains gasses like…
Oxygen
Carbon Dioxide
The five concentric layers within the atmosphere that can be differentiated by its temperature and characteristics…
Troposphere
Stratosphere
Mesosphere
Thermosphere
Exosphere
warmer nearer the surface of the Earth 60 ℉/17 ℃; extends from Earth’s surface to, on average, about 12 kilometers (7.5 miles) in height; tasked with holding all the air plants need for photosynthesis and animals need to breathe, and also contains about 99 percent of all water vapor and aerosols
Troposphere
temperature increases with height -15 ℃/-60 ℉; 12 and 50 kilometers (7.5 and 31 miles) above Earth’s surface; best known as home to Earth’s ozone layer, which protects us from the Sun’s harmful ultraviolet radiation; nearly cloud- and weather-free; also the highest part of the atmosphere that jet planes can reach.
Stratosphere
Coldest Layer; Located between about 50 and 80 kilometers (31 and 50 miles) above Earth’s surface; the top of this layer is the coldest place found within the Earth system; Most meteors burn up in this atmospheric layer. Sounding rockets and rocket-powered aircraft can reach the mesosphere.
Mesosphere
Hottest Layer; Located between about 80 and 700 kilometers (50 and 440 miles) above Earth’s surface; lowest part contains the ionosphere; is both cloud- and water vapor-free; The International Space Station orbits here.
Thermosphere
The aurora borealis is found on what hemisphere?
Northern hemisphere
The aurora australis is found in what hemisphere?
Southern Hemisphere
Located between about 700 and 10,000 kilometers (440 and 6,200 miles) above Earth’s surface; the highest layer of Earth’s atmosphere; there’s no weather at all; Most Earth satellites orbit in the ___.
Exosphere
____ is an interdisciplinary academic field that integrates physical and biological sciences to the study of the environment, and the solution of environmental problems; provides an integrated, quantitative, and interdisciplinary approach to the study of environmental systems.
Environmental Science
Environmental Science deals with…
Ecology
Physics
Chemistry
Biology
Soil Science
Geology
Atmospheric Science
Geography
____ incorporate more of the social sciences for understanding human relationships, perceptions and policies towards the environment.
Environmental Studies
____ focuses on design and technology for improving environmental quality.
Environmental Engineering
Environmental scientists work on subjects like the
- understanding of earth processes
- evaluating alternative energy systems
- pollution control and mitigation
- natural resource management
- the effects of global climate change
Environment science has become significant for the following reasons:
-Environment issues being of international importance
-Problems cropped in the wake of development
-Explosively increase in pollution
-Need to save humanity from extinction
-Need for wise planning of development
