<span>C. C6 H12 O6 + 6 O2 → 6 C O2 + 6 H2 O + energy </span>
The plants grow because of the energy transferred from the sun
Assuming it's only salt water, it should be 85%
Salt water
sand and water
vinegar
this next one is for CEMENT
Concrete is a heterogeneous<span> (composite) material consisting of </span>cement<span>, water, fine aggregates and coarse aggregates. ... Otherwise it is a </span>heterogeneous<span> material.</span>Cement<span> may be called a </span>homogeneous<span> material. But concrete is not.</span>
