Question

according to the text, which sequence of events runs concurrently with the development of electric vehicles?
the development and perfecting of batteries
the improvement of automobile safety measures
an increase in carbon - based air pollution
more hazards for pedestrians who live near charging stations

Explanation:

To determine the event concurrent with electric vehicle (EV) development, we analyze each option:

• "the development and perfecting of batteries": EVs rely on batteries, so battery development is closely tied to EV advancement as better batteries improve EV performance/range.
• "the improvement of automobile safety measures": Safety improvements are general to all vehicles, not specific to EV development timing.
• "an increase in carbon - based air pollution": EVs aim to reduce pollution, so this is opposite to EV development's goals and not concurrent.
• "more hazards for pedestrians near charging stations": There's no established link showing this occurs with EV development; charging stations are generally safe.

So the development of batteries is concurrent with EV development.

Answer:

the development and perfecting of batteries