Global Human Population Growth and Environmental Impact

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Questions and Answers

What are two reasons for the exponential increase in human population growth?

Improved technology leading to an abundance of food and improved medicine, hygiene, and health care.

How does carbon monoxide affect the human body?

It combines with haemoglobin in red blood cells, preventing them from carrying oxygen.

What is the primary source of carbon monoxide emissions?

Mostly released via car emissions.

What are the pollutants responsible for the formation of acid rain?

Sulphur Dioxide and Nitrogen Oxides. Signup and view all the answers

How does the increase in human population lead to more pollution?

As more resources are used to sustain the growing human population, more waste is produced and more pollution is created. Signup and view all the answers

What are the consequences of acid rain on biodiversity?

Damage to leaves, roots, buds, flowers of trees and other plants, and death of certain organisms in rivers and lakes. Signup and view all the answers

What are the natural and manmade sources of methane?

Rotting plants in marshlands, rice growing, and cattle rearing. Signup and view all the answers

How do human activities contribute to the increase in greenhouse gases?

Combustion of fossil fuels for carbon dioxide and cattle digestion and rice paddy fields for methane. Signup and view all the answers

What is the role of CFCs in the greenhouse effect?

CFCs are powerful greenhouse gases that contribute to the enhanced greenhouse effect. Signup and view all the answers

Explain the greenhouse effect and its impact on Earth's temperature.

The Sun's rays enter the Earth's atmosphere and the heat bounces back from the Earth's surface, leading to an increase in Earth's average temperature. Signup and view all the answers