3A, 3B & 3C respectively

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5.b
1. Technical Issues

1. Cybersecurity Risks

5a.(ii)
1. Portable Power Bank and Solar Charger

1. Water Purification Tablets or Filter

2. Smartphone with GPS and Offline Maps

3. Insect Repellent Wristband or Portable Mosquito Repeller

5a.(i) The term "Technology" refers to the application of scientific knowledge for practical purposes, especially in industry. It encompasses the tools, techniques, methods, and processes used to create products, services, and systems that meet human needs and improve the quality of life.

1. a) The term "Environment" refers to the surroundings in which we live, including the air, water, land, and living things like plants and animals. It's the ecosystem that supports life on Earth.

b)

1. Industrial waste: Factories and industries release chemicals and waste into water bodies, harming aquatic life and human health.
2. Sewage and wastewater: Untreated sewage and wastewater from homes and businesses enter water bodies, contaminating them with bacteria, viruses, and other pollutants.
3. Agricultural runoff: Fertilizers, pesticides, and manure from farms can enter water bodies, causing harmful algal blooms and dead zones.
4. Litter and trash: Improperly disposed of trash, like plastic bags and bottles, can enter water bodies, harming aquatic life and clogging waterways.

c
1. Implement proper waste management: Ensure that industrial, agricultural, and domestic waste is properly treated and disposed of before entering water bodies.
2. Promote sustainable agriculture: Encourage farmers to adopt eco-friendly practices like organic farming, reducing fertilizer and pesticide use.
3. Organize community clean-ups: Regularly clean up litter and trash along water bodies and promote recycling.
4. Support water conservation: Encourage responsible water use, fix leaks, and install rainwater harvesting systems to reduce wastewater generation.

Let's take action and protect our environment!