The isoline representation is the most used method to visualise quantitative phenomena which occur comprehensively and which values vary continuously in space. They are therefore called continua. Examples for such continua are temperature, air pressure, precipitation heights or ground elevations.
What’s the question and isn’t this a maths question??
When to talk about the plate tectonic it sound the same as our continents as we see in the ancient days you were having two continents which is laurasia and Gondwanaland
What are the most common renewable energy resources used in the Nordic nations?
hydroelectric
solar
both are correct
hopes its help