the dark side of the moon is the umbra which is the darkest part and then the moon's rotation is twice its revolution
Explanation: Solar energy is the main source of our energy
A large area of flat land, that is at a high altitude is called a plateau. An excellent example of a plateau is Tibet.
he WEST SIBERIAN Plain stretches across northern India and is home to one-tenth of the world's population.
Answer:
This theory was developed in 1929 by the American demographer Eric Lofstedt
Explanation:
- Demographic transition s models that show how the population of any country moves from traditional to modern society i.e shift from high birth rate to low birth rate with improvement ion stands of living.
<u>The transition has five stages/phases
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First Stage: A stable or slow increase in population. i.e pre-industrial society
Second Stage: Very rapid increase in population. i.e Agricultural revolution
Third Stage: Increase slows down. i.e Urbanization stage.
Fourth Stage: Falling and then a stable population. i.e Disease control
Fifth Stage: Stable or slow increase.
- Demographers created this transitional model keeping in mind the lifestyle of the man at the time of industrial societies keeping in mind the factors like income, marriage, morality, age and sex ratio, and dependent and independent variable like the birth and death rates.
- Various nations have different demographic transitions and shift occur when societies advances and moves up the ladder of growth. LInking society fertility and economic development.
