Highwall mining is often used when excavating an open-pit mine becomes too expensive. There are many advantages over underground mining, including the fact that it is both more cost-effective and involves less lead time.
Answer:
is the most cominform and looks like the branching pattern of tree roots ,it develops and regions under Lane by homogeneous material
Answer:
The correct option is: dew point temperature
Explanation:
Dew point refers to the temperature of the air when it is saturated with water vapor. The dew point temperature is dependent on the humidity in the air. It is <u>directly proportional to humidity and moisture content in air</u>. <u>Therefore, a lower dew point means lower moisture content. </u>
When the air is cooled beyond its dew point, the water vapour in the air condenses to liquid water, called dew.
Answer:
Growth stage
Explanation:
The Growth stage -
Fire begins with a growth period which either transits to a rapid flashover period or, if that stage is not reached , starts to decay and fire ends . Growth phase is usually defined as the preflashover stage. Traditionally , compartment fires are either a fuel-controlled or ventilation controlled .
Fuel controlled fire is when the oxygen is available to combust all available fuel vapors in enclosure . Whereas ventilation controlled fire is when there is no enough oxygen to combust all the fuel available inside the enclosure.
