The Cycle Of Life1

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Information about The Cycle Of Life1

Published on January 22, 2008

Author: Zishan

Source: slideshare.net

Description

The nitrogen cycle

PRESENTED BY ZISHAN.S.SHAIKH GRADE 10

INTRODUCTION OF CYCLES OF LIFE CARBON CYCLE (include video) NITROGEN CYCLE (include video) QUESTION AND ANSWER SESION THE FINISHING PAGE PRESENTATION SUMMARY

INTRODUCTION OF CYCLES OF LIFE

CARBON CYCLE (include video)

NITROGEN CYCLE (include video)

QUESTION AND ANSWER SESION

THE FINISHING PAGE

THE MOVEMENT OF ELEMENTS FROM ONE BODY TO THE OTHER. THE CYCLES OF LIFE

DEFINATION : It is a natural system consisting of plants, animals and microrganisms in an area functioning together will all non-living physical (A biotic) factors of the environment. Earth is a biosphere with a closed system For a steady supply of nutrient elements they must be recycled. Different chemical elements like carbon, oxygen and nitrogen exist on earth in a fixed ratio. THE BIOSPHERE

DEFINATION : It is a natural system consisting of plants, animals and microrganisms in an area functioning together will all non-living physical (A biotic) factors of the environment.

Earth is a biosphere with a closed system

For a steady supply of nutrient elements they must be recycled.

Different chemical elements like carbon, oxygen and nitrogen exist on earth in a fixed ratio.

NITROGEN – 78.1% OXYGEN - 20.9% ARGON – 0.96% OTHER GASES – 0.04% CHEMICALS COMPOSITION OF THE ATMOSPHERE

NITROGEN – 78.1%

OXYGEN - 20.9%

ARGON – 0.96%

OTHER GASES – 0.04%

The cycle that includes both the living biosphere and the non – living lithosphere, atmosphere and hydrosphere. The carbon cycle and the nitrogen cycle are both biogeochemical cycles. THE BIOGEOCHEMICAL CYCLE

The cycle that includes both the living

biosphere and the non – living lithosphere,

atmosphere and hydrosphere.

The carbon cycle and the nitrogen cycle are

both biogeochemical cycles.

THE CARBON CYCLE

Carbon is a non-metal. It belongs to the group 14 elements in the periodic table. The earth’s atmosphere is 0.19% carbon. The human body contains 18% carbon that is almost hundred times more than in the atmosphere. Every organism needs carbon either for its structure or for energy. CARBON AS AN ELEMENT

Carbon is a non-metal.

It belongs to the group 14 elements in the periodic table.

The earth’s atmosphere is 0.19% carbon.

The human body contains 18% carbon that is almost hundred times more than in the atmosphere.

Every organism needs carbon either for its structure or for energy.

The carbon cycle is a process in which carbon is recycled over and over again. The process of recycling goes on in the earth’s atmosphere between the biotic and a-biotic environment. The complete cycle is made up of “sources” that put back carbon into the environment and “sinks” that absorb and stores carbon. THE CARBON CYCLE

The carbon cycle is a process in which carbon is recycled over and over again.

The process of recycling goes on in the earth’s atmosphere between the biotic and a-biotic environment.

The complete cycle is made up of “sources” that put back carbon into the environment and “sinks” that absorb and stores carbon.

THE CARBON CYCLE

FLOW CHART OF CARBON CYCLE

As carbon Di-oxide in the atmosphere and dissolves in water forming hydro carbon. Carbonate rocks in limestone and corals in the form of calcium carbonate. In sinks as coal petroleum and natural gas Dead organic matter, e.g. humus in the soil PRESENCE OF CARBON IN THE ENVIRONMENT

As carbon Di-oxide in the atmosphere and dissolves in water forming hydro carbon.

Carbonate rocks in limestone and corals in the form of calcium carbonate.

In sinks as coal petroleum and natural gas

Dead organic matter, e.g. humus in the soil

Carbon in the form of carbon di oxide enters in the phototrophic plants and algae that use it for photosynthesis. Carbon passes up the food chain through the primary consumers. The primary consumers metabolise in presence of oxygen to produce carbon di oxide. CARBON IN THE BIOTIC ENVIRONMENT

Carbon in the form of carbon di oxide enters in the phototrophic plants and algae that use it for photosynthesis.

Carbon passes up the food chain through the primary consumers.

The primary consumers metabolise in presence of oxygen to produce carbon di oxide.

Carbon di oxide is slightly soluble and diffuses in water, for example: oceans and lakes. The phytoplankton's and algae use carbon di oxide and photosynthesis and later become a food for the primary consumers. Some organisms like corals and animals with shells use carbon di oxide and convert it into calcium carbonate. Decomposition: bacteria act upon dead and decaying matter to form carbon di oxide. Over a period of time the shell sediments and the dead plants and animals form limestone sinks. Weathering and volcanic eruptions also add carbon di oxide to the environment CARBON RETURNS TO THE ABIOTIC ENVIRONMENT

Carbon di oxide is slightly soluble and diffuses in water, for example:

oceans and lakes.

The phytoplankton's and algae use carbon di oxide and photosynthesis

and later become a food for the primary consumers.

Some organisms like corals and animals with shells use carbon

di oxide and convert it into calcium carbonate.

Decomposition: bacteria act upon dead and decaying matter to

form carbon di oxide.

Over a period of time the shell sediments and the dead plants

and animals form limestone sinks.

Weathering and volcanic eruptions also add carbon di oxide to the environment

carbon di oxide is an important green house gas. excessive burning of fossil fuels release a considerably high amounts of energy and carbon di oxide. deforestation has reduced the amount of carbon di oxide used by plants for photosynthesis. resulting in glacial retreat and increase in global temperatures. the sea levels have also increased due to human interference. HUMAN EFFECTS ON CARBON CYCLE

carbon di oxide is an important green house gas.

excessive burning of fossil fuels release a considerably

high amounts of energy and carbon di oxide.

deforestation has reduced the amount of carbon

di oxide used by plants for photosynthesis.

resulting in glacial retreat and increase in

global temperatures.

the sea levels have also increased due to

human interference.

THE GREEN HOUSE EFFECTS

 

RELATION BETWEEN TEMPERATURE AND CARBON DIOXIDE

FACTS ON OZONE

THE NITROGEN CYCLE

Nitrogen is a non – metal element usually in gaseous state. It belongs to group 15 and period 2 of the periodic table. It is the most abundant element in the earth’s atmosphere, it makes up 78% of the atmosphere. The human body consists 3% nitrogen. Nitrogen is the building block of amino acids, which form the proteins, enzymes and nucleic acids. NITROGEN AS AN ELEMENT

Nitrogen is a non – metal element usually in

gaseous state.

It belongs to group 15 and period 2 of the periodic table.

It is the most abundant element in the earth’s atmosphere, it makes up 78% of the atmosphere.

The human body consists 3% nitrogen.

Nitrogen is the building block of amino acids, which form the proteins, enzymes and nucleic acids.

The transfer of nitrogen and nitrogen containing compounds in the biotic and A biotic environment. THE NITROGEN CYCLE

The transfer of nitrogen and nitrogen

containing compounds in the

biotic and A biotic environment.

Plants and animals can’t use atmospheric nitrogen. Nitrogen fixation: conversion of atmospheric nitrogen into nitrites and nitrates. Either by lightning or through some bacteria and algae present in the soil. These nitrogenous compound enter the food cycle through the plants. The excretory product and the dead are then converted by de-nitrification to ammonia gas. THE NITROGEN CYCLE

Plants and animals can’t use atmospheric nitrogen.

Nitrogen fixation: conversion of atmospheric nitrogen

into nitrites and nitrates.

Either by lightning or through some bacteria and algae

present in the soil.

These nitrogenous compound enter the food cycle

through the plants.

The excretory product and the dead are then converted by de-nitrification to ammonia gas.

 

 

FLOW CHART OF NITROGEN CYCLE

The major human activity involves excessive fossil fuel combustion. The production and use of fertilizers. Resulting in global climate change, stratospheric ozone depletion, regional smog, visibility degradation acid rain, water – use impairment and eutrophication. THE HUMAN IMPACT

The major human activity involves excessive

fossil fuel combustion.

The production and use of fertilizers.

Resulting in global climate change, stratospheric

ozone depletion, regional smog, visibility degradation acid

rain, water – use impairment and eutrophication.

THE HUMAN IMPACT

THE HUMAN IMPACT

Acid rain is rain or any other form of precipitation which is usually acidic. The term “acid rain” is commonly used to mean deposition of acid components in rain, snow, fog, dew or dry particles. ACID RAIN

Acid rain is rain or any other form of

precipitation which is usually acidic.

The term “acid rain” is commonly used to

mean deposition of acid components in rain,

snow, fog, dew or dry particles.

Compounds like sulphur dioxide and nitrogen oxides are released. Oxides reacts with water to form acid precipitation called acid rain. WHAT CAUSES ACID RAIN ?

Compounds like sulphur dioxide and nitrogen oxides are released.

Oxides reacts with water to form acid

precipitation called acid rain.

CONTRIBUTION TOWARDS SAFE EARTH CONTROL DEFORESTATION TREAT CHEMICAL WASTE BEFORE DISPOSAL USE BIO-DEGRADABLE PRODUCTS RECYCLE THE WASTE USE VEHICLE WHEN NECESSARY

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