Rucete ✏ Biology In a Nutshell
1. Global Climate Change
- Caused by increased levels of greenhouse gases (like CO₂ and methane)
- Leads to rising temperatures, melting glaciers, sea-level rise, and weather pattern shifts
2. Ozone Depletion
- Caused by CFCs (chlorofluorocarbons) breaking down ozone in the stratosphere
- Results in more UV radiation reaching Earth
- Leads to increased skin cancer, cataracts, and ecosystem disruption
3. Acid Rain
- Caused by sulfur dioxide (SO₂) and nitrogen oxides (NOx) from burning fossil fuels
- Mix with water vapor to form sulfuric and nitric acids
- Damages forests, lakes, and buildings
4. Desertification
- The process of productive land turning into desert
- Often due to overgrazing, deforestation, and poor agricultural practices
- Leads to loss of arable land and reduced biodiversity
5. Deforestation
- Clearing of forests for agriculture, logging, or urban development
- Leads to habitat loss, carbon release, and disrupted water cycles
6. Pollution
- Includes air, water, and land pollution
- Harmful substances affect organisms and ecosystems
- Sources: industry, agriculture, waste disposal
7. Reduction in Species Diversity
- Caused by habitat destruction, pollution, climate change, and overexploitation
- Leads to ecosystem instability and loss of valuable genetic resources
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Biology in a nutshell