Which organisms break down dead matter and waste into nonliving elements? a
Consumers

b
Decomposers

c
Omnivores

d
Producers

B) Decomposers

Explanation:

Decomposers break down dead matter and waste into non-living elements.

a small container that holds a source of energy a solar cell that captures light energy and converts it into electricity a voltaic cell that uses the oxidation of a fuel to produce electricity

explanation:

the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3