Answer:
Water vapor is a greenhouse gas, which absorbs the heat radiated from the earth's surface. It allows less heat to escape back to space by trapping the heat energy in the lower atmosphere and keeps the atmosphere warm.
Explanation:
Water vapor is formed through a process called evaporation. In this process, water from the ocean, rivers, and lakes evaporates to become water vapor using the energy from the sun. Water vapor also moves into the atmosphere by transpiration (plants) and sublimation (snow and ice).
The water vapor cools down and transforms into water droplets by a process called condensation, as it rises high in the atmosphere where the air is cooler. This water droplets that formed by condensation make up clouds.
When the earth’s surface get heated by the sunlight, some of the heat radiates back into the atmosphere and most of this heat is absorbed by gases in the atmosphere called green house gases. This process is called greenhouse effect, which keeps the earth warm. The green house gases mainly consists of carbon dioxide and water vapor. Water vapor absorbs the heat radiated from the earth's surface. It allows less heat to escape back to space by trapping the heat energy in the lower atmosphere and keeps the atmosphere warm.
The amount of water vapor in the atmosphere is directly proportional to the temperature. When addition of the other greenhouse gases causes a temperature increase (such as extra CO2 from fossil fuels), more water evaporates and this leads to an increase in water vapor which further increases the atmospheric temperature since water vapor is a greenhouse gas. So, water vapor is part of a positive feedback system.
Answer:
Some of them lose their leaves in the winter, they are the oldest type of seed plant, and they include the tallest type of seed plants
Explanation:
denitrification
Explanation:
Thiobacillus denitrificans are denitrifying bacteria
Answer:
All animals in the phylum Chordata share some key features that appear at some stage during their development 1) notochord 2) dorsal hollow nerve cord 3) pharyngeal slits
Explanation:
Phylum chordata is probably the most notable phylum.The most distinguishing character that all animals belonging to this phylum have is the presence of notochord. Phylum Chordata is again divided into three subphyla. They are:
Urochordata
Cephalaochordata
Vertebrata
Chordates show following features, at different stages in their life. They are:
Notochord: It is a longitudinal rod that is made of cartilage and runs between the nerve cord and the digestive tract. Its main function is to support the nerve cord. In Vertebrate animals, the vertebral column replaces the notochord.
Dorsal Nerve Cord : This is a bundle of nerve fibres which connects the brain to the muscles and other organs.
Pharyngeal slits: They are the openings which connect the mouth and the throat. These openings allow the entry of water through the mouth, without entering the digestive system.
