Question

1. choose one modern invention to research and write it below.

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1. research and record below how this invention has affected the environment of the united states.

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Explanation:

Question 1

A modern invention that is suitable for research is the electric vehicle (EV). It is a prominent modern invention with significant impacts on various aspects including the environment, technology, and transportation.

Electric vehicles (EVs) have both positive and negative environmental impacts in the US. Positively, they reduce tailpipe emissions, improving air quality in urban areas by cutting down pollutants like carbon monoxide, nitrogen oxides, and particulate matter. This helps in reducing respiratory illnesses and related healthcare burdens. Negatively, the production of EV batteries requires mining of materials like lithium, cobalt, and nickel, which can lead to environmental degradation in mining regions (e.g., habitat destruction, water pollution from mining runoff). Also, the electricity used to charge EVs may still come from fossil fuel - based power plants in some areas, so the overall carbon footprint reduction depends on the energy mix. However, as the US shifts towards renewable energy sources for electricity generation, the environmental benefits of EVs in terms of reduced greenhouse gas emissions from the transportation sector (a major contributor to US emissions) are becoming more significant. For example, in states with high renewable energy penetration like California, EVs are a key part of the strategy to meet climate goals by reducing transportation - related carbon emissions.

Answer:

Electric Vehicle (EV)

Question 2