2. What happens when the oxide of non-metal react with water? 3. Write one thing which is being done for conservation of plants and animals. 4. Write uses of electroplating. 5. How is air pollution harmful for us?
Answers
Answer:
Nonmetals also form covalent oxides, which are usually molecular in character. ... Ionic metal oxides react with water to give hydroxides (compounds containing the OH− ion) and resultant basic solutions, whereas most nonmetal oxides react with water to form acids and resultant acidic solutions
The health effects of air pollution are serious – one third of deaths from stroke, lung cancer and heart disease are due to air pollution. ... Microscopic pollutants in the air can slip past our body's defences, penetrating deep into our respiratory and circulatory system, damaging our lungs, heart and brain.
1-Tin cans used for storing food are made by electroplating tin metal on to iron.
2-it is used in bicycle to resist rust or corrosion.
3-it is used in jewellery to make it lusturous
Our flora and fauna and their habitats, protected areas called sanctuaries, national parks and biosphere reserves have been earmarked. Plantation, cultivation, grazing, felling trees, hunting and poaching are prohibited there.