How do our activities effect the environment
Answers
Human activities affect the environment in recent times in the form of global warming, floods, cyclones, tsunamis etc which are a few consequences of various activities of man.
Explanation:
Few are:
Deforestation: Trees take in carbon dioxide and give out oxygen to nature, which is used by us for survival. Cutting down of trees for land availability due to a rise in population and to bring up new industries has got an imbalance in the ecological system, resulting in a decrease in the oxygen levels in the air.
Water Pollution: Contaminated water from large scale industries, lack of proper sewage systems, various human activities near water bodies have caused water pollution to large extents. Also, sometimes seas and oceans face oil spillages, which has long term effects on water, leaving it unavailable for consumption.
Air pollution: Overpopulation has immensely caused air pollution in many ways, one of which is the use of vehicles for transportation. Harmful gases from industries are left into the air, causing us to breathe air that has poisonous chemicals leading to new medical ailments.
Exploitation of Marine life: Due to extensive fishing activities, our marine life is becoming extinct. Water pollution causes a disturbance in aquatic life and makes survival questionable. When these fish are consumed by humans, it leads to illness and death too in certain cases.
Global warming: Is seen as a result of an increase in the temperature of the earth as a result of the greenhouse effect and related human activities. It results in the melting of ice caps and hence rises in sea levels causing tsunamis, cyclones, and other natural disasters.
Habitat destruction: Survival of wildlife is becoming difficult as their natural habitat is being cut down. Deforestation may result in the availability of land but leaves animals homeless.
Extinction: Animals are becoming endangered because of – non-availability of natural habitat, threats from the environment, predators, hunting, pollution, destruction.
Harmful chemicals and fertilizers: With a rise in population, there is an increase in the demand for food. To meet this availability, plants are being grown with the use of harmful fertilizers which have very low nutritious values.
Urbanization: Has brought about a significant change and imbalance in our ecological system.