What are government leaders doing to preserve the farmlands of the netherlands

How would i answer this for an exam?

Heyi am new to are you all americans? ( just want to know , i don't mean any offence ) ?

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.