Natural Gas

123456
Across
  1. 4. Natural gas is transported through a network of what?
  2. 5. What do Natural gasses smell like?
  3. 6. Natural gas is highly?
Down
  1. 1. What does LNG stand for?
  2. 2. What is the primary component of natural gas?
  3. 3. Is natural gas lighter or heavier than air?