Choose the correct word from the brackets: a) She is (taller/tallest) than her sister. [1] b) The baby is (sleep/sleeping) now. [1] c) He (has/have) a new car. [1] d) They (go/went) to the market…

a) She is taller than her sister. b) The baby is sleeping now. c) He has a new car. d) They went to the market yesterday.

Causes of Water Pollution

Water pollution is one of the most serious environmental issues today. It occurs when harmful substances contaminate water bodies such as rivers, lakes, oceans, and underground water sources. There are several causes of water pollution, which can be broadly categorized into natural and human-made sources.

One of the primary causes of water pollution is industrial waste. Factories and industries release toxic chemicals, heavy metals, and other harmful substances into water bodies. These pollutants can be extremely dangerous to aquatic life and human health. For example, untreated industrial waste containing mercury or lead can cause severe health problems, including cancer and neurological disorders.

Another significant cause is domestic sewage. Households release untreated sewage into rivers and lakes, which contains bacteria, viruses, and other pathogens. This sewage can lead to waterborne diseases such as cholera, dysentery, and typhoid. Improper disposal of household waste, including plastic and chemicals, also contributes to water pollution.

Agricultural activities are another major contributor. Farmers often use chemical fertilizers and pesticides to increase crop yield. When it rains, these chemicals wash away into nearby water bodies, causing eutrophication. Eutrophication leads to excessive growth of algae, which depletes oxygen levels in water, harming aquatic life.

Oil spills from ships and offshore drilling are also a significant source of water pollution. These spills can destroy marine ecosystems and harm wildlife, including birds and fish. Additionally, plastic waste from various sources, including single-use plastics, contributes to pollution by clogging waterways and harming marine animals.

Lastly, mining activities release heavy metals and other toxic substances into water bodies. These pollutants can persist in the environment for a long time, causing long-term damage to ecosystems and human health.

In conclusion, water pollution is a complex issue with multiple causes. Addressing this problem requires collective efforts from individuals, industries, and governments to ensure the sustainable use and protection of our water resources. Proper waste management, strict regulations on industrial discharge, and public awareness can help mitigate the causes of water pollution and preserve our precious water bodies for future generations.