noun
1.
a fertile spot in a desert, where water is found.
or
2.
type of rigid foam into which the stems of flowers can be secured in flower arranging.
heat, wind, moisture/ humidity, dryness, natural disasters
The answer to your question would be B. This is because GM stands for genetically modified, which means it is not natural. And that is why people prefer organic food if they can afford it, because they don't want to eat food that is not natural. Hope this helps! :D Feel free to ask more questions.
One way would be to limit who can receive a passport or visa to travel to another country and another would be at the entrance to the country they may not be admitted for example due to inadequate funds to live. In my case, when I travelled by bus from Costa Rica to Panama, the Panamanian authorities required that I either have a ticket out of the country or a return ticket back to San Jose, Costa Rica.
