Answer:
- Breeding superior types of grains
Use of machinery
Use of irrigation
Use of fertilization
Soil conservation
Explanation:
Green Revolution is described as the age of drastically increased agricultural productivity due to wide-ranging advancement in agricultural technology in the 20th century.
As per the question, the efforts that were major elements of the Green Revolution include 'breeding of superior types of grains', 'expansion in the use of machinery, fertilization, and irrigation facilities', 'conservation of soil', etc. All these together contributed to substantial growth in the agricultural productivity that led to revolution.
Option 'B' = changes in climate, had the greatest impact on pre-historic man.
Changes on the weather forced men to move periodically or cyclically, usually returning to their original location at various times. When they moved to colder climates, they would make clothing out of animal skins, to protect themselves. When the nomads learned how to plant, they didn't need to search for other places anymore.
4- they feared attacks. from Japan and Korea.
5-the cost of maintain overseas
6-the french colonist did not try to convert
<span>most Chileans are mestizos, while Brazilians are very ethnically diverse</span>
The border states during the Civil War were the slave states that didn't leave the Union. These states included Delaware, Kentucky, Maryland, and Missouri. Kentucky - President Abraham Lincoln considered Kentucky's loyalty to the Union as an important factor in the Union winning the Civil War.