In: Biology
Why is the human population an important topic? How fast is our population growing? Are all parts of the world growing at the same rate? Why would there be a difference? What is the doubling time of of the world's population? Are there any limiting factors to our population or will it continue to increase exponentially forever? How do you think our growing population will affect the quality of human lives and how will it affect the lives of the other organisms we share the planet with?
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(1)demography is the pquality of human lives and how will affect the other organisms rocess that influence the size,growth,characteristics ,and disrtibution of human population.
and the human population analyzing the birth rates, death rates,immigration patterns ect.
demography and population spread based on necessary resources like food and water.
the population is important are= we cannot have sustainable planet without stabilizing .As human demand on
for resources like water,land ,trees, and and energy also grow.
(2)population growth has relatively easy and inexpensive solutions ,that the solution and beacause population imoacts every environment challange.and the population is essential to acheive sustainabillity.
population growth is fast ,in human or geograhy the population growth is increases in number and indivudual population. huamn population globally around 83 millions anunually or 1.1 percent year .
the maximum global population is 1 billion in 1800 to 7.616.
the rate population growth is not same ,in all part of the world.for exampele japan ,europe growing rate slow -doubling their ppopulation in 5 to 100 years.and united state , austarlia ,newzland =dubling their population in 30 to 4 yeras.the rate of population growth of different countries of the world are with few expetions,simple the difference between their birth rate and death rate.
(4)doubling time is the peroid of time and for the quantity to double in size or value.and it is applied to population ,resource extraction,consumption of goods ,compound interstnand the malignant tumours
(5)in the environment with limited resources , the population growth is exponential,as each reproduction cycel produce a large of candiadtes foe the next cycle.the follwoing factors ate weak when the populaion is low and become stroger as the population increases and making the population stable ,equilibrium and oits stable capacity.
=diseases
= food sacarcirty
=predation
=environmental factors.
(6) poulation affect the quality of human life-global warming,contaminated seafoods, increase the lung diseases
air pollutions.
(7) human population will affect the species through = pollution,global warmig, genetic modification,deforestration,climate change,ocean acidification,water pollution,acid rain