Answer: The transition metals have the following physical properties in common: <em><u>they are good conductors of heat and electricity. they can be hammered or bent into shape easily. they have high melting points</u></em> (but mercury is a liquid at room temperature)
Explanation:
I believe the answer is 100. Hope this helps. (ノ◕ヮ◕)ノ*:・゚✧
density = mass/volume.
It would help if I could see the specific answer choices, but an environment that would have lots of oxygen, water, decaying organisms and sunlight would be the answer (ex. the forest or riverbed)