Which country borders Venezuela to the east? O Brazil O Colombia O Ecuador O Guyana​

Which of these is a drawback of using natural gas? a. it is fairly safe for use in homes.b. it burns more cleanly than crude oil products.c. scientists have developed new ways of extracting it.d. during its extraction, groundwater can be contaminated.

After world war 2, many people moved from the cities to?

What is the connection between a metalloid and a semiconductor