Describes all the processes associated with the discharge of magma, hot fluids, ash, and gases.
end of exam
a. hydraulic energy
b. magnetism
c. thermal energy
d. volcanism

Volcanism describes all the processes associated with the discharge of magma, hot fluids, ash and gases.
It's the phenomenon of the eruption of a volcano that releases hot liquids called magma, also release ashes and gases.
Magma later on become stones when harden

Dlive among other english speakers

This is all you, but i can give you some topics that you could try. if it rained when you want to do something outdoors, it 'limits' that human activity. maybe you want to do an experiment that goes throughout the whole year and you have to have above freezing the entire year. this 'limits' your activity. i thought of those just off of the top of my head. something that gets to me that might be getting to you is you are thinking too hard about what to do. think simply, and if it is too simple, then bump it up just a little bit.