The formula for specific gravity is:
where 
is the density of the substance and 
is the density of water.
The density of water, = 
Substituting the values in above formula we get,
The formula of density is:
The density of mercury is 
The mass of mercury is 
Substituting the values in density formula:
Answer:
physical change
Explanation:
i got the same question sorry for the late response but that's the answer good luck
No,Biomass is organic material which has stored sunlight in the form of chemical energy. Biomass fuels include wood, wood waste, straw, manure, sugar cane, and many other byproducts from a variety of agricultural processes. Biomass is a renewable energy source because the energy it contains comes from the sun<span>.</span>
The cause of no gravity means the effect will be we float.
