The majority of earth's atmosphere is nitrogen, n2. the percentage of nitrogen in earth's atmosphere remains constant as prescribed by the law of conservation of matter and because it is a reasonably non-reactive gas. like carbon, nitrogen is cycled through earth's spheres. however, nitrogen can be converted into forms usable by plants and animals, either by lightning or bacteria. once converted to usable forms, nitrogen is able to cycle the rest of the way through the ecosystem. but in order to be made available to life forms on earth, nitrogen must be fixed or covered into a usable form by lightning strikes or a) bacteria. b) decomposition. eliminate c) producers. d) volcanoes.
Answers: 1
Biology, 22.06.2019 13:30
Which plate boundary causes plates to collide forming mountain ranges, volcanoes, and island arcs? give an example of this type of plate boundary. 2. at which plate boundary do rifts and mid-oceans ridges form? give an example of this type of plate boundary. 3. at which plate boundary do plates slide past each other while moving in opposite directions? give an example of this type of boundary.
Answers: 1
Biology, 22.06.2019 13:30
The earths core is made up mainly of what 2 substances? 2. like an egg, earth has a core, a layer surrounding the core, and a thin, hard outer layer. which layers of the earth match the layers of an egg?
Answers: 1
Biology, 22.06.2019 16:00
Produce proteins by following coded instructions that come from the nucleus of the cell.
Answers: 3
The majority of earth's atmosphere is nitrogen, n2. the percentage of nitrogen in earth's atmosphere...
Physics, 24.03.2021 18:50
Chemistry, 24.03.2021 18:50
Mathematics, 24.03.2021 18:50
Mathematics, 24.03.2021 18:50
Mathematics, 24.03.2021 18:50
Arts, 24.03.2021 18:50
Mathematics, 24.03.2021 18:50