Which of the following are used by European countries to decrease air pollution? (multiple responses: mark all that apply) Creating "smokeless" zones
Creating "smokeless" zones

Requiring strict emissions standards from auto manufacturers
Requiring strict emissions standards from auto manufacturers

Testing air quality regularly
Testing air quality regularly

Switching to hydroelectric, solar, and wind energies

The rwandan patriotic front and the interahamwe were a. relief agencies b. military groups c. political parties d. nonprofit organizations select the best answer from the choices provided. a b c d

St. louis, missouri, and san francisco, california, both lie around 33° north latitude. st. louis is inland, while san francisco is on the coast of the pacific ocean. which statement about these north american cities would be true? san francisco will be warmer than st. louis in the winter. san francisco and st. louis will be about the same temperature year round. san francisco will be warmer than st. louis in the summer. san francisco will be warmer than st. louis year round.

Iii-eneral sciencewhich of these is the best explanation of how a smooth round stone became smooth? a continuous freezing and thawingbvolcanic actioncit fell off the side of a cliffdit was in a stream for a long time.