hich statement best describes the cause of the Earth's warming in recent decades? Which one is it? 1. Volcanic eruptions have increased in frequency, causing more greenhouse gases to be emitted. 2. The sun has become brighter, causing the planet to absorb more heat. 3. Greenhouse gases like carbon dioxide have increased in concentration. This has prevented some of the radiation that normally leaves the Earth's atmosphere from leaving, causing the temperature l to increase. 4. The species of plant that normally absorb sunlight have undergone genetic mutations, causing them to emit heat rather than absorb it

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Environmental Pollution

Environmental pollution occurs due to some unwanted alteration in the surroundings which results in unfavorable effects on all organisms of that surrounding.