Hemophilia is a genetic disorder that causes a protein required for normal blood clotting to be missing. The mode of inheritance for hemophilia is sex-linked.
Answer: a. sex-linked
        
                    
             
        
        
        
Answer:
At 0 years, an event took place which is known as metamorphosis of igneous rock i.e., formation of igneous rocks from melted magma.
Strontium-90 is a radioactive element which undergoes beta decay to form yttrium-90. It has a half life of approximately 28 years and decay energy of 0.546 MeV. This radioactivity is used by geologist to estimate the age of the rock, fossils, meteorites etc. Other radioactive elements used by the geologists are carbon-40, potassium-40 etc.
Radiometric clock is set when the rock was formed in the past i.e., the moment when an ingenious rock was solidified from molten magma. 
 
        
                    
             
        
        
        
It is sensors :) i hope this helped you :)
        
                    
             
        
        
        
<span>Only about 75% of water is fresh and suitable for human use.
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