CAPSULE 2POPULATION EXPLOSION

Direction for Computer Assisted lesson

Follow the Instruction given below:This lesson is about the topic- Population explosion This capsule contain suitable slides related to the concept. Necessary Pictures are provided in each slide. Use mouse (single click) to move to the next slide. Click on the textbox to get the response.Please note the direction given by the computer.Brain Teasers are provided for developing conceptsBrain relaxers are provided for self checking with necessary explanation.After completing the lesson the learners can recapitulate the lesson

through Test Your knowledge session.

A pyramiding of numbers of a biological population; especially : the recent great increase in humannumbers resulting from increased survival and exponential populationgrowth.

Let us observe the picture and identify Natural Disasters -POPULATION EXPLOSION

Picture of Population explosion

Look at fig1 Population explosion Fig.5

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The literal meaning of population is “the whole number of people or inhabitants in a country or region”.

DEFINING THE TERM - POPULATION

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The literal meaning of population is “the whole number of people or inhabitants in a country or region”.

Brain Teaser 2.1 Is population explosion possible without any one reason?

Yes No

Refer Brain Relaxer 2.1 Click here

Population explosion a sudden, large increase in the size of a population.

Here is the story of Overpopulation To Sustainable Prosperity

lAn Indian man who sued the authorities over his own birth because his mother conceived after undergoing sterilisation in a state clinic has lost his decades-long legal battle.Rajesh Laljibhai Patel's mother launched a lawsuit against the government of India's western Gujarat state two years after he was born in 1985.Vijuben Patel, who already had four children, had undergone a sterilisation procedure at a camp organised by authorities in the state six years earlier.She argued that government should pay for her son's maintenance, citing medical negligence, and named him as a plaintiff in the case even though he was just two years old at the time.India's legal system moves notoriously slowly and it was not until 1992 that the court ruled in her favour, ordering authorities to pay her 25,000 rupees (£246).But the authorities appealed, and a higher court finally ordered the family to repay the money in December last year – by which time Rajesh had grown up and his mother had died.

Here is my story

Clearly read From Overpopulation To Sustainable Prosperity

Find out the Number Of People Suffering Food Crises As A Result Of over population Has Tripled In The Last Thirty Years"

Here are some pictures of a causes of over population Observe the picture and identify the causes.

Here are some pictures of a causes over population Observe the picture and identify the causes.

Fig.2

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ENLARGING THE DEFINITION

A pyramiding of numbers of a biological population; especially : the recent great increase in humannumbers resulting from increased survival and exponential populationgrowth.

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Brain Teaser 2.2These are the only causes of over population?

Yes No

Refer Brain Relaxer 2.2

Click here

The tall and fast-moving waves also damage property and permanently alter the landscape, sometimes wiping out entire islands. They destroy everything in their path, including buildings, trees, power lines, bridges, cars, boats and more, leaving behind them a mass of solid waste and debris that is almost impossible to clean up. They also destroy animal life, insects, plants and natural resources. Hazardous materials and toxic substances are also a concern, as asbestos, oil fuel and other industrial raw materials and chemicals often leak as a result of property damage.

DEFINITION

Tsunamis are giant waves caused by undersea earthquakes, landslides or volcanic eruptions. The severity of their effects depends on a number of factors, namely the magnitude of the earthquake, landslide or volcanic eruption, along with its distance from shore. Small and undetectable tsunamis occur almost every day with little to no effect, but larger tsunamis have devastating effects to life and land that are often irreversible.

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CONCEPT FORMATION

C2 A tsunami is a powerful series of waves that result due to an abrupt disturbance, such as an earthquake. Learn how tsunamis form and grow and discover the devastating effects they can have on people and the environment.

UNIT 2Effects of over population

THINKING SESSION

Brain Relaxer 2.1Global overpopulation would ‘withstand war, disasters and disease’

he pace of population growth is so quick that even draconian restrictions of childbirth, pandemics or a third world war would still leave the world with too many people for the planet to sustain, according to a study.Rather than reducing the number of people, cutting the consumption of natural resources and enhanced recycling would have a better chance of achieving effective sustainability gains in the next 85 years, said the report published in the proceedings of the National Academy of Sciences.“We were surprised that a five-year WW3 scenario, mimicking the same proportion of people killed in the first and second world wars combined, barely registered a blip on the human population trajectory this century,” said Prof Barry Brook, who co-led the study at the University of Adelaide, in Australia.The second world war claimed between 50 million and 85 million military and civilian lives, according to different estimates, making it the most lethal conflict, by absolute numbers, in human history. More than 37 million people are thought to have died in the first world war.Using a computer model based on demographic data from the World Health Organisation and the US Census Bureau, the researchers investigated different population reduction scenarios. They found that under current conditions of fertility, mortality and mother’s average age at first childbirth, global population was likely to grow from 7 billion in 2013 to 10.4 billion by 2100.Climate change, war, reduced mortality and fertility, and increased maternal age altered this prediction only slightly. A devastating global pandemic that killed 2 billion people was only projected to reduce population size to 8.4 billion, while 6 billion deaths brought it down to 5.1 billion.“Global population has risen so fast over the past century that roughly 14% of all the human beings that have ever existed are still alive today. That’s a sobering statistic. This is considered unsustainable for a range of reasons, not least being able to feed everyone as well as the impact on the climate and environment,” said co-author Prof Corey Bradshaw, also from the University of Adelaide.

From the above news it is clear

that the cases and effects of over

population

Brain Relaxer 2.2

Look at the Fig. 3

Fig.3

EFFECTS OF OVER POPULATION

The effects of the tsunami on the country during this period range from destruction and damage, death, injury, millions of dollars in financial loss, and long lasting psychological problems for the inhabitants of the region.

Test your knowledge

I Say True or False

1. Over population is one of the causes of Birth rate

2. Over population is the normal population

3. What are the effects of a over population? …………………………………………………………………………. …Answer……………………………………………………………………….

True False

True False