Answer:
B. it is a community of plants,animals and there physical surrounding.
They have same chemical properties
for example the elements of group VIII are called noble gases .They are unreactive, odorless and colorless.
The answer is D. Gold. Malleability, the ability for a material to be hammered or shaped into thin sheets, is a common property of metals. Among the choices, gold is the only metal. Also, gold is considered to be the most malleable metal.