PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoChoose the correct answer:
1. Statement 1 - Gases released by burning coal and petroleum are harmful.
Statement 2 - Oxides of nitrogen, sulphur, and carbon are poisonous at higher concentrations.
Statement 2 - Oxides of nitrogen, sulphur, and carbon are poisonous at higher concentrations.
2. Statement 1 - Natural resources are available in limited quantities and have a fixed location.
Statement 1 - Natural resources are considered basic requirements for a country's economic development.
Statement 1 - Natural resources are considered basic requirements for a country's economic development.
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