1 November 1993, When the Maastricht Treaty came into place.
These layers are the troposphere, stratosphere, mesosphere and thermosphere.
Explanation:
density is in fact commonly expressed in units of grams per cubic centimetre. well think about it if we all were just a bunch of density how would it effect our health and society? well let me explain, density is also something in grams or per cubic, density can have good effects and bad effects, im not really sure the answer im trying to help but if i must say if density had a good effect there wouldn't need any worries but density can have bad side effects to everything
hope that kinda helped for ur answer...?…
Answer:
Biological diversity, or biodiversity, refers to all of the variety of life that exists on Earth. Biodiversity can be described and measured at three different levels: species, genetic, and ecosystem diversity. Species diversity refers to the number of different species in an ecosystem or on Earth as a whole.
Explanation:
