Question

what is a key reason for the increased use of natural gas? it is cheaper than oil it is a cleaner fuel source it is more abundant it is easier to t

Explanation:

To determine the key reason for the increased use of natural gas, we analyze the options:

• "It is cheaper than oil" is not always true as prices fluctuate.
• "It is a cleaner fuel source" is a key factor because natural gas produces fewer pollutants (like CO₂ per unit energy, less soot, etc.) compared to coal and oil, aligning with environmental concerns and regulations promoting cleaner energy.
• "It is more abundant" – while reserves are significant, the "cleaner" aspect is a more driving factor for increased use in the context of environmental awareness.
• The last option is cut off, but from the visible ones, the cleaner fuel source is the strongest reason.

Answer:

B. It is a cleaner fuel source (assuming the blue option is labeled B; adjust label if needed, but the correct reason is that natural gas is a cleaner fuel source, leading to its increased use due to environmental considerations and regulatory pushes for cleaner energy.)