Question
What type of oxides are formed when non-metals react with oxygen? Explain with an example.
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(i) Lack of management of which factor is shown in the picture?
(ii) How can that factor be managed with the help of microbes?
(iii) How are the oil spills in oceans cleared?
| Effect | Problem |
| (1) Spread of epidemics | (a) Economical |
| (2) Shortage of funds | (b) Administrative |
| (c) Medical | |
| (d) Physical |
| Evidences of evolution | Examples |
| (1) Morphological evidences | (a) Duck billed Platypus and Peripatus |
| (2) Anatomical evidences | (b) Remnants and impressions |
| (c) Human hand and fore limb of bull | |
| (d) Shape and venation of leaf |