Explain the difference between contour lines and relief and how they relate to elevation on a map

Which environment would most likely not contain fossils? a a thick deposit of cracked, dried mud b sediment deposited in a sandy river bed c intrusive rock formed from cooled magma d layers of sand accumulated for a century

How many countries have portuguese as a national language?

Hey, i was what is consisted in a sustainable city? like what unique designs they have, etc. for answering ; )