a long, seismically active submarine ridge system situated in the middle of an ocean basin and marking the site of the upwelling of magma associated with seafloor spreading. An example is the Mid-Atlantic Ridge.
<h2>THIS IS THE GOOGLE DEFINITION*</h2>
Answer:
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Explanation:
In the future, hydrogen will join electricity as an important energy carrier, since it can be made safely from renewable energy sources and is virtually non-polluting. It will also be used as a fuel for 'zero-emissions' vehicles, to heat homes and offices, to produce electricity, and to fuel aircraft.
Answer:
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Explanation:
<em>It is important to control the variables so as to isolate the dependent and the independent variables from other variables. Since the value of the dependent variable varies with the independent variable, not isolating the variables would lead to interference of multiple variables, and hence, knowing which variable produces a particular effect will be difficult. In other words, the primary aim of experiments would not be achievable without isolating the dependent and the independent variables.</em>
Visual signal is speedy and requires sunlight hours with no obstructions.
<h3>What is visual obstruction?</h3>
Visual obstruction is the blocking of views or foreshortening of views.
Visual obstruction is defined via peripheral visible area testing regular with the advocated documentation requirement.
<h3>When measuring visual obstruction the usage of a Robel pole which band is recorded?</h3>
1994; 'Robel pole': Best et al. 1998) with alternating 1 dm bands painted darkish and light. The lowest decimetre mark visible on the pole was once recorded as the obstruction measurement. Visual obstruction is commonly used as a measure of cover density (Higgins et al.
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Respiration is an catabolic process in which the organic compounds are oxidized to release energy, carbon dioxide and water. The liberated energy is stored in the ATP molecules (adenosine triphosphate), which are the energy currency of the cells. The four basic processes involved in respiration are-
(1) Pulmonary ventilation or breathing- It is the process of inflow of air into the lungs from the atmosphere (inspiration or inhalation) and outflow of air from the lungs to the atmosphere (expiration or exhalation). It is due to the difference in the air pressures according to the principle of Boyle's law.
(2) External respiration- It is the process of exchange of the oxygen and carbon dioxide between the inhaled air in the alveoli of the lungs and the deoxygenated pulmonary blood.
(3) Internal respiration- It is the process of exchange of gases between the oxygenated blood and the tissue cells of the body.
(4) Cellular respiration- It is the process of oxidation of the respiratory substrates like glucose inside the cells.
Thus, the four processes of respiration include the pulmonary ventilation, external respiration, internal respiration and cellular respiration.