PLZ HELP ME I NEED THE ANSWER IDK WHAT IT IS San and Francisco want to help cut back on the large levels of air pollution in their city. Which of the following steps should they take?

A. use public transportation systems less often

B. drive her personal car as often as possible to help raise emissions

C. try to use her city’s bus system more often

D. purchase a less fuel-efficient vehicle

Which of the following countries has declared itself nuclear free

Why have the countries of the region had difficulty establishing democratic governments in recent years? choose all answers that are correct b is also correct i need to know if theres any morecommunists have overtaken the countries of the caucasus region. the soviets established national borders in the region without considering the location of ethnic groups. fighting continues between armenia and azerbaijan over the nagorno-karabakh region. civil war between communists and islamic groups in tajikistan resulted in thousands of deaths and refugees are forced to flee. in a test!

What is the relationship between groundwater and aquifers?