Tag: economics

Questions Related to economics

State whether the following statements are True or False:
There has been positive growth rate of population since 1921.

economics dynamic of human development development indices various development indexes social development

  1. True

  2. False

Show answer
Correct Option: A
Explanation:

The year 1921 is called a Great Divide in the demographic history of India because it is the only census year when there was decline{decrease} in growth of population. After 1921, there has been a trend of continuous rise in population.

State whether the following statements are True or False:
Density of population is low in India.

economics dynamic of human development development indices various development indexes social development

  1. True

  2. False

Show answer
Correct Option: B
Explanation:

Density of population is high in India. It is the second-most populous country, and the most populous democracy in the world. India's Population in India is expected to reach 1326.20 Million by the end of 2020.

Which of the following is not a component of Human Development Index?

economics dynamic of human development development indices various development indexes social development

  1. Per Capita Income

  2. Life Expectancy Rate

  3. Literacy Rate

  4. Poverty Rate

Show answer
Correct Option: D
Explanation:

Human Development Index is an important component in the Human Development Report. Per Capita Income is an important component of HDI. It is the average income of a country. Also, life expectancy at birth which is the expected length of life at the time of birth is an important component. Moreover, the literacy rate for 15+ years of the population is useful in HDI.

Thus, the correct answer is D.

Human Development Index is a composite of _________.

economics dynamic of human development development indices various development indexes social development

  1. income, trade and investment indicators

  2. poverty, human rights and unemployment indicators

  3. income, health and education indicators

  4. health, education and quality of life indicators

Show answer
Correct Option: D
Explanation:

The Human Development Index (HDI) is a composite statistic of life expectancy, education, and per capita income indicators, which are used to rank countries into four tiers of human development.

What do you call the rain that contains chemical waste and causes of damage to plants and animals?

economics environmental economics acid rain air pollution - effects and control air pollution and its effects

  1. Smog

  2. Acid rain

  3. Monsoon rain

  4. Seasonal rain

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Correct Option: B

Deposition of acid substance, generated from pollution, known as

economics environmental economics acid rain air pollution - effects and control air pollution and its effects

  1. Acid deposition

  2. Ozone Depletion

  3. Eutrophication

  4. Deforestation

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Correct Option: A

Weak acids, only capable of adding, fewer

economics environmental economics acid rain air pollution - effects and control air pollution and its effects

  1. $H _{2} ions$

  2. HCl ions

  3. Cl ions

  4. P ions

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Correct Option: A

When oil and gas resources are burnt they kill many forests and lakes by

economics environmental economics acid rain air pollution - effects and control air pollution and its effects

  1. deforestation

  2. water pollution

  3. acid rain

  4. forest fire

Show answer
Correct Option: C

Acid rain is the downpour of

economics environmental economics acid rain air pollution - effects and control air pollution and its effects

  1. carbon dioxide in rain

  2. dust in rain

  3. sulphur dioxide in rain

  4. oxygen in rain

Show answer
Correct Option: C
Explanation:

When the pH of raindrops down below 5.5 it is called acid rain. It occurs because of oxides of sulphur (SO2) and nitrogen (NO) which on reacting with water in the atmosphere form sulphuric acid and nitric acid. These acids then come down on earth along with rain and thus, making the rain acidic. Hence, acid rain is the downpour of sulphur dioxide (SO2) and nitric oxide (NO).

So, the correct answer is 'sulphur dioxide in rain'.

Recent reports of acid rains industrial cities are due to the effect of atmospheric pollution by?

economics environmental economics acid rain air pollution - effects and control air pollution and its effects

  1. Excessive releases of $NO _2$ and $SO _2$ by burning of fossil fuels

  2. Excessive release of $CO _2$ by burning of fuel like wood and charcoal, cutting of forests and increased animal population

  3. Excessive release of $NH _3$ by industrial plants and coal gas

  4. Excessive release of CO in atmosphere by incomplete combustion of coke, charcoal and other carbonaceous fuels in pancity of oxygen

Show answer
Correct Option: A
Explanation:

the biggest cause of acid rain today is Sulfur dioxide and nitrogen oxides released into the air by fossil-fuel power plants, oil refineries, and vehicles, that react with rain water to form sulphuric acid and nitric acid respectively

So, the correct answer is 'Excessive releases of $NO _2$ and $SO _2$ by burning of fossil fuels'