(4) What natural resources are essential for sustenance of life on Earth
(5) How does river water get polluted ?
(6) Which water sources are polluted by gutters ?
(7) Which diseases are caused by water pollution ?
(8) Why are crops, vegetables and fodder full of pollutants ?
Answers
Answer:
1 answer - air , water and soil
2 answer - Chemical waste from factories is sometimes dumped into rivers and lakes, or directly into the ground. Pesticides (chemicals that kill insects) applied to farmland enter surface water and groundwater, often in large quantities.
3 answer - streamwaters
4 answer - The fact that plants (vegetables, crops, or trees) become contaminated with pollutants from the environment comes from the ability of plants to extract environmental pollutants through their roots, along with water and nutrients.
Answer:
4:-The three most important nonliving resources for us is the air we breathe, the water we drink and the land we live on. Without these three resources, we cannot exist. In this section, we will discuss the importance of air, water, and soil for the sustenance of the living beings.
5:-Chemical waste from factories is sometimes dumped into rivers and lakes, or directly into the ground. Pesticides (chemicals that kill insects) applied to farmland enter surface water and groundwater, often in large quantities. ... Some pollutants slowly break down into harmless chemicals.
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7:-Waterborne pathogens, in the form of disease-causing bacteria and viruses from human and animal waste, are a major cause of illness from contaminated drinking water. Diseases spread by unsafe water include cholera, giardia, and typhoid.
8:-The fact that plants (vegetables, crops, or trees) become contaminated with pollutants from the environment comes from the ability of plants to extract environmental pollutants through their roots, along with water and nutrients.