Answer:
Option A
Explanation:
The green houses gases concentration increases in the the troposphere layer of the atmosphere due to which the sunrays (IR radiation) reflected back by earth are restricted by the green house gases thereby increasing the temperature of the earth and make the climate warmer.
Hence, option A is correct
ANSWER:
D. A system of desktops
Developed along waterways so that settlers could have access to water for crops and food
Answer: C. Ammonification occurs when Bacteria break down plants
Explanation:
The Nitrogen cycle is a biogeochemical cycle by which Nitrogen moves around the various ecosystems present on Earth in different chemical forms. Various processes enable this and one of those is Ammonification.
Ammonification is a process in which microorganisms like bacteria and fungi breakdown plant and animal biomass upon death and convert nitrogen in these organic specimen into inorganic ammonia or ammonium which is then converted to Nitrates by the Nitrification process.
Answer:
Formation of the planets. The various planets are thought to have formed from the solar nebula, the disc-shaped cloud of gas and dust left over from the Sun's formation. ... These rocky bodies would become the terrestrial planets (Mercury, Venus, Earth, and Mars).
