Answer:
True
Explanation:
They are built from particles and blobs of congealed lava ejected from a single vent. As the gas-charged lava is blown violently into the air, it breaks into small fragments that solidify and fall as cinders around the vent to form a circular or oval cone, making them the simplest out there
The mass is conserved, so it stays the same, 450g
The answer is transition metals because they have no specific charge except for 1 or 2 of them
