Threat to Ecosystem

Q. Which of the following result in the destruction of ecosystem?

1. Volcanoes
2. Earthquake
3. Pollution
4. Industrialisation

Q. From the below given options, identify the environmental problems that are caused by the construction of large dams.

1. Deforestation
2. Loss of biological diversity
3. Emission of greenhouse gases
4. Air pollution

Q. Which of the following is/are the cause(s) for the diminishment of ecosystems?

1. Urbanisation
2. Industrialisation
3. Tourism
4. Dams

Q. How are war situations and natural calamities affecting the balance of ecosystem?

Q. How are war situations and natural calamities affecting the balance of ecosystem?

Q. Which of the following was not a reason for the rapid spread of diseases and epidemics in the urban areas in the Gilded Age?

1. Overcrowding of poor people in tenements
2. Presence of disease-bearing mice, rats, flies, and other vermin in the slums.
3. Poor air quality due to the rapid popularity of the car.
4. Lack of widespread sanitation and facilities for daily washing and cleanliness.
5. Lack of readily available inexpensive medical facilities.

Q. What were the "buffalo soldiers"?

1. Troops tasked with eliminating the buffalo herds.
2. Troops diverted from the Civil War.
3. Native Americans recruited to fight on the side of the Americans.
4. African-American soldiers sent out to the frontier.
5. A derisive nickname for soldiers from the South.