Ecology and Environment -Danish and Ayush

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ECOLOGICAL CRYSIS

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INTRODUCTION: a. The science of the relationships between organisms

and their environments. Also called bionomics.

b. The relationship between organisms and theirenvironment.

2. The branch of sociology that is concerned withstudying the relationships between human groups andtheir physical and social environments. Alsocalled human ecology.

3. The study of the detrimental effects of moderncivilization on the environment, with a view towardprevention or reversal through conservation. Alsocalled human ecology.

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ECOLOGICAL CRYSIS

Our planet earth suffering from an ecologicalcrisis. There are many reasons why ecological

crisis still appear on the earth. Firstly, it isover consumption of the earths recourse.

Secondly, polluting the healthy economy andenvironment. Finally, humans are domain over

other living creatures. Therefore theses aremain reason why blue planet suffering from

an irreversible ecological crisis.

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WHY ECOLOGICAL CRYSISOCCURS: An ecological crisis occurs when the environment of

a species or a population changes in a way that destabilizesits continued survival. There are many possible causes ofsuch crises:

It may be that the environment quality degrades comparedto the species' needs, after a change of abiotic ecologicalfactor (for example, an increase of temperature, lesssignificant rainfalls).

It may be that the environment becomes unfavourable forthe survival of a species (or a population) due to an

increased pressure ofpredation. Lastly, it may be that the situation becomes unfavourable

to the quality of life of the species (or the population) dueto raise in the number of individuals (overpopulation).

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MAJOR CONSEQUENCES ?THE EXISTING OF HUMAN BEING DEPENDS ON

OWR STEWARDSHIP OF THE ANIMALS.THEWORLD NEEDS A RELIABLE ECOSYSTEM IN

EVERYTHING CAN SURVIVE.DESTRUCTION OFTHESE SPECIES ALSO HAVE ECONOMIC

CONSEQUENCES .THRIVING INDUSTRIES ANDPRODUCT WILL CEASE TO EXIST.

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POPULATION EXPLOSION POPULATION ARE GROWING FASTER AND FASTER.

95% OF THIS INCREASES IN DEVLOPING COUNTRIES.

UNCONTROLLED POPULATION GROWTH IS A

THREAT TO HUMAN SURVIVAL.WITHOUT

POPULATION CONTROL,HUMANS ARE QUITECAPABLE EATING AND CONSUMING THEMSELVESOUT OF HOUSE AND HOME.

MALTHUS AN ESSAY ON THE PRINCIPAL OF

POPULATION,AS IT AFFECTS THE FUTUREIMPROVEMENT OF SOCIETY SAYS THAT THE

POPULATION GROWS FASTER THAN THE FOODSUPPLY AND BRINGS POVERTY AND MISERY.

P

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O

AOGAHOINA

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LAND EROSIONLAND EROSION IS THE PROCESS BY WHICH SOIL ANDROCK ARE REMOVED FROM THE EARTH SURFACE BYNATURAL PROCESS SUCH AS, WIND OR WATER FLOW

AND THEN TRANSPORTED AND DEPOSITED INOTHER LOCATIONS.EROSION IS A NATURALPROCESS,ALTHOUGH HUMAN ACTIVITY HASDRAMATICALLY MADE IT WROSE BY 10 TO 40 TIMES.

IT CAUSES BY RAINFALL,WIND ANDGRAVITATION FORCES,DEFORESTATION, INDUSTRIAL

AGRICULTURE,ROADS,CLIMATIC CHANGE AND

URBANIZATION.IT CAN BE PREVENTED BY PLANTING

VEGITATION SUCH AS TREES ,GROUND COVED,SHRUBS AND OTHER PLANTS.

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D

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PLANTS:DEFORESTATIONDeforestation, clearance or clearing is the removalof a forest or stand of trees where the land is

thereafter converted to a non-forest use. Examples ofdeforestation include conversion of forestland tofarms, ranches, or urban use.

More than half of the animal and plant species in theworld live in tropical forests.

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EFFECTS OF DEFORESTATION:

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WWW.GEOGRAPHY ABOUT .COM

WWW.PREZI.COM

WWW.WTO.ORG

WWW.WIKIPEDIA.ORG

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SUBMITTED BY:MD.DANISH RAHMAN

AYUSH GUPTA