Explanation

Demographic Transition Theory (DTT) was developed by Frank Notestein in 1945.

This theory provides an explanation of how fertility and mortality rates impact the age distribution and growth rate of populations

Explanation

In the year 1887, Dev Samaj or Dev Dharam was founded by Shiv Narayan Agnihotri.

I Dev Samaj or Dev Dharam headquarter was situated in Lahore.

Explanation

Food production takes up almost half of the planet's land surface and threatens to consume the fertile land that still remains, scientists warn.

The global impact of farming on the environment is revealed in new maps, which show that 40 percent of the Earth's land is now given over to agriculture.

Explanation

Buffer stock which is the surplus or reserve stock of grains/crops bought by government to keep the prices of the grains down.

Explanation

The toga, a distinctive garment of ancient Rome, was a roughly semicircular cloth, between 12 and 20 feet in length, draped over the shoulders and around the body. 

Explanation

In modernity, they have become part of Viet Nam's national costume.

In China, it was typically associated with farmers, while mandarins wore tighter circular caps, especially in the winter.

Explanation

 خارج کرنے والا emitter 

List of Countries that Produce the Most Carbon Dioxide (CO2)

1.       China (28%) 

2.       United States (15%)

3.       India (7%)

4.       Russia (5%)

5.       Japan (3%)

(Rest of the World (21%)

6.       Germany (2%)

7.       Iran (2%)

8.       South Korea (2%)

9.       Saudi Arabia (2%)

10.   Indonesia (2%)

11.   Canada (2%)

12.   Mexico (1%)

13.   South Africa (1%)

Explanation

Fertility is the incidence of childbearing in a country's population.

زرخیزی ملک کی آبادی میں بچے پیدا کرنے کے واقعات ہیں۔

Explanation

Sub-Saharan Africa is the poorest part of the world.

The total fertility rate is near 4.8 children per woman.

Because the infant mortality rate is high, (1 in 20 babies don’t survive)

Life expectancy is only 56 years old for males and 62 years for females.

Explanation

Russia had the largest population among European countries.