Answer:
Convection currents describe the rising, spread, and sinking of gas, liquid, or molten material caused by the application of heat. Tremendous heat and pressure within the earth cause the hot magma to flow in convection currents.
For what ?? whats the text and story
Answer: The danger of the narrators current predicament
In Jack London's "To build a fire" the main theme is Man vs. Nature, the main character is crossing the Alaskan frozen landscape, following the path of the Yukon river. He dismisses the advice of the old-timer and he also doesn't pay attention to his companion, the dog who can feel the threat of the harsh weather. The right answer is the second option.
Efficient<span> (adj.) – Performing or functioning in the best possible manner with the least waste of time and effort. The </span>difference between effectiveness and efficiency<span> can be summed up shortly, sweetly and succinctly – Being </span>effective<span> is about doing the right things, while being </span>efficient<span> is about doing things right.
hope this could help.</span>
