The correct answer is iron.
The scientists from Britain discovered a soap with magnetic characteristics that could exhibit huge applications in the manner to fight against the damaging oil spills. In the mentioned soaps, the iron-abundant salts are supplemented to establish metallic centers inside the particles of the soap.
After the solution is treated in a water source, a magnet was utilized to subjugate both the surface tension and gravity of the water, levitating the iron-rich scrubbing bubbles so that they can be withdrawn easily.
An mRNA template is used to create an amino acid chain
B. All birds have feathers and hollow bones, but not all birds fly (ostrich, emu, kiwi, etc).
The cell membrane. it protects the cell from outside substances. it controls what can enter and leave the cell.
