ANSWER: Both of the above
Explanation:
Scientists have developed a new method that can trap potentially harmful gases emitted by coal factories, cars and trucks within honeycomb-like microscopic organo-metallic structures.
These Metal-organic frameworks (MOFs), comprise different building blocks composed of metal ion centres and organic linker molecules.
Altogether they form a honeycomb-like structure that can trap gases within each comb, or pore.
The small nano-scale structures also have the potential to trap various emissions from things as immense as coal factories and as small as cars and trucks.
Scientists decided to use a molecule that can cap the outer surface of each of Metal-organic frameworks (MOFs) crystal in the same way bees seal their honeycombs with wax to prevent honey from spilling out and it worked.