When is the manual removal of oil by hand most likely to be used?
a.) when the spill is far out at sea
b.) when the oil has sunk to the bottom
c.) when heavy equipment cannot reach the spill
d.) when the oil has already started to break down

Option D, When the oil has already started to break down

Explanation:

When the oil breaks down, there are high chances that it can get absorbed at the surface of beaches consisting of sand, gravel, or cobble which cannot be cleaned otherwise. In such scenarios adsorbents are placed manually to soak the oil spilled on beach. Mostly shorelines are cleaned using these manual processes, otherwise inner oil spills are cleaned by machines only.

Hence, option D is the correct answer.

question: which statement best describes the different properties of metals?

answer: they are shiny and bend without breaking.

since metals have certain characteristics properties, they include the following: they are ductile, malleable, shiny, hard, lustrous, flexible and they are good conductor of heat and electricity. so therefore, metals are not dull and they are not non-flexible as listed. instead, they are shiny and flexible.

hope this , have a good day. c;

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