PLS HELP (ASAP) Acutely give me the answer no links

There is a box on your desk that
acts as a paperweight. Its
measurements are 1 cm by 3 cm
by 7cm. The block has a mass
of 220.5g. What is the
substance?

This is what i found “in a gas turbine engine, the combustor or combustion chamber is fed high pressure air by the compression system. early gas turbine engines used a single chamber known as a can type combustor. today three main configurations exist: can, annular and cannular (also referred to as can-annular tubo-annular).” i hope this you for what your looking for. can you plz mark me brainliest?

Bag of bolts weight 29.4n

The correct answer is  "c".  it is "c" because melting is an endothermic change, and endothermic get's energy from surroundings. 

When someone eats food