Homes can be heated by energy produced from alternative energy resources or fossil fuels. Which of this is an example of a home using an alternative energy source?

idk

explanation:

if you look up in the top right corner you'll see your current profile picture, click than click "view profile" you'll be able to change it there.

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.