Answer:
The Mercator map projection shows the correct shapes of the continents and directions accurately.
Explanation:
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Two ways are develop it over time (people is really stressed and harmful environments)but the most common is genetically passed down from your parents
Answer:
The first land plants appeared around 470 million years ago, during the Ordovician period, when life was diversifying rapidly. They were non-vascular plants, like mosses and liverworts, that didn't have deep roots. About 35 million years later, ice sheets briefly covered much of the planet and a mass extinction ensued.
Explanation:
Well as far as the physical they vary so you must balance the variables and for biological you look at how mant chemicals has been placed in the product and for physical your looking for the now state of matter I really hope this works for you sorry if wrong