Question

instructions

1. using the resources within your rich, research and comprehensively respond to the following questions:
2. prepare a10 minutes presentation on a power point slide

nb: remember this assignment has 10 points rewarded for scholarly research, presentation, and explanation of key scientific ideas and will contribute to your general grades.
a) how do human activities alter ecosystems? can you provide specific examples from local or global contexts?
b) what human actions can help restore damaged ecosystems? are there examples of successful ecosystem restoration projects?
c) identify major types of environmental pollution and causes

Explanation:

a) Human activities like deforestation (e.g., Amazon rain - forest clearing) for agriculture or urbanization remove habitats, disrupting food chains. Industrial activities release pollutants like heavy metals and greenhouse gases, altering climate and water quality.
b) Reforestation projects (e.g., the Loess Plateau reforestation in China) help restore damaged ecosystems. Planting native species, wetland restoration, and reducing pollution can aid in restoration.
c) Major types of environmental pollution include air pollution (caused by vehicle emissions, industrial fumes), water pollution (from industrial waste, sewage disposal), and soil pollution (due to pesticides, heavy - metal contamination).

Answer:

a) Human activities such as deforestation, industrial activities alter ecosystems. For example, Amazon deforestation and industrial emissions of greenhouse gases.
b) Reforestation, wetland restoration are human actions to help restore ecosystems. Example: Loess Plateau reforestation.
c) Major types of pollution: air (vehicle/industrial emissions), water (industrial/sewage waste), soil (pesticides/heavy - metals).