Question

Which of the following things have usually occurred as cities became larger during the last two centuries?

a) The local micro-climate was altered.
b) There was increased air pollution.
c) The drinking water supplies became polluted.
d) all of the above

Answer 1

Cities becoming larger over the last two centuries have usually resulted in alterations to the local micro-climate, increased air pollution, and polluted drinking water supplies.

Step-by-step explanation:

As cities have become larger over the last two centuries, several things have usually occurred:

1. The local micro-climate was altered: The urban heat island effect, caused by the concentration of buildings and paved surfaces, leads to higher temperatures in cities compared to surrounding rural areas.
2. There was increased air pollution: The combustion of fossil fuels and industrial activities in cities contribute to higher levels of air pollution, which can have negative impacts on human health.
3. The drinking water supplies became polluted: As urban populations increase, the demand for freshwater resources also increases. This can lead to the pollution of water sources due to inadequate waste management and industrial activities.

Therefore, the correct answer is d) all of the above.