The physical characteristics of an organism is its phenotype. I remember this because phenotype and physical both start with 'ph.'
Hope this helps. Good luck! :)
        
                    
             
        
        
        
Answer:
B. bituminous
Explanation:
Bituminous coal is an organic sedimentary rock produced by compression of peat bog material by diagenesis and submetamorphics.
Bituminous coal has low moisture and high carbon content and hence used for the production of steel and cement, coke production an electricity generation.
Coking coal is a type of Bituminous coal are best used as fuel dource in metal industry having very narrow range of volatility and plasticity. Volatility is maintained by smelters  to optimize the ease of burn rate,  ignition, and energy output of the coal as this determines the burn rate of the coal.
Hence, the correct option is B. bituminous.
 
        
             
        
        
        
Answer:
short answer: The Earths atmosphere
Explanation:
The Earth's atmosphere protects us from the multitude of small debris, the size of grains of sand or pebbles, thousands of which pelt our planet every day. So the probability of a major collision is quite small
hope this helps:)