Answer:
A. They are extremely difficult to extinguish because fuel obviously is abundant and oxygen can enter easily, even through joints in surrounding rock.
Explanation:
Coal bed fires refers to spontaneous combustion which are triggered by human activity (mining), lightning, wildfires etc.
This usually happen underground when the coal beds are exposed to oxygen as a result of mining activities or human induced fires or combustion.
The correct answer is - 45 percent.
Since the clock produces 45 useful unites energy units for every 100 unites of energy that it uses, than it turns out that the efficiency of the clock is 45 percent.
A student buries an ice cube in a pan of dirt and observes the dirt as the ice cube melts. This activity is a model of the formation of a kettle.
Answer:
Your answer:
<h2>1.odisha.</h2>
<h2>2.97.25 E.</h2>
<h2>3.Nepal..</h2>
<h2>4. Lakshadweep. </h2>
<h2>5.shri lanka. </h2>
Explanation:
<h3>Hope it helps you..</h3>
Thanks..
