Question 1: Describe two ways in which the production of electronic devices can harm the environment.

Answer: Production of electronic devices can harm the environment through the extraction of raw materials, which can cause habitat destruction and pollution, and through the manufacturing process, which may release toxic chemicals and greenhouse gases.

Question 2: Explain why it is important for tech companies to recycle old electronic devices instead of disposing of them in landfill sites.

Answer: Recycling reduces pollution and prevents toxic substances from leaching into the soil and water. It also conserves natural resources and reduces the need for mining new materials.

Question 3: Identify and explain one ethical issue related to the energy consumption of data centers.

Answer: One ethical issue is that data centers consume large amounts of electricity, which can contribute to climate change if the electricity is generated from fossil fuels. Companies have a responsibility to use renewable energy sources.

Question 4: Complete the following truth table for a AND gate with two inputs, A and B: | A | B | Output | |---|---|---------| | 0 | 0 | ? | | 0 | 1 | ? | | 1 | 0 | ? | | 1 | 1 | ? |

Answer: 0, 0, 0, 1

Question 5: Draw a logic circuit that uses AND, OR, and NOT gates to represent the condition: 'The system is active if either the sensor detects motion or the door is unlocked, but not both.'

Answer: A correct sketch would include an XOR gate or an arrangement using AND, OR, and NOT gates to represent the exclusive or condition, with labeled inputs for 'motion detected' and 'door unlocked' and an output 'system active.'

Question 6: Suggest two actions that technology companies can take to reduce their environmental impact.

Answer: They can use renewable energy sources for their operations and design products that are easier to recycle or have longer lifespans.

Question 7: Describe the potential environmental impact of e-waste if not properly managed.

Answer: E-waste can release toxic chemicals into the soil and water, harm wildlife, and contribute to pollution. It also wastes valuable materials that could be recycled.

Question 8: Explain why using cloud computing can be more environmentally friendly than using local servers.

Answer: Cloud computing can be more energy-efficient because large data centers optimize energy use and often rely on renewable energy, reducing overall carbon footprint compared to many smaller local servers.

Question 9: Identify one ethical concern related to the energy consumption of blockchain mining.

Answer: Blockchain mining consumes large amounts of electricity, which may be generated from fossil fuels, contributing to environmental pollution and climate change.

Question 10: Sketch a simple diagram showing the flow of electronic waste from consumers to recycling facilities. Leave space for the drawing.

Answer: A sketch should depict consumers disposing of electronics, transportation to recycling centers, and the recycling process, with arrows indicating flow direction.