Where does the world's supply of oxygen mostly come from?

Where does the world's supply of oxygen mostly come from?
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Which region is known as the birthplace of three major religions, has 65% of the world's oil reserves, and has a mostly arid climate?

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Last Answer : The Middle East. Mostly between Iran and Israel.

Which of the following statement(s) is/are true concerning carbon dioxide kinetics? a. The amount of carbon dioxide produced is equivalent to the amount of oxygen consumed b. Carbon dioxide levels in blood, present mostly as a bicarbonate ion, can quickly change c. Normally the amount of carbon dioxide excreted through the lung is exactly equal to the amount of carbon dioxide produced in peripheral tissues d. The amount of carbon dioxide excreted is a function of ventilation of perfused alveoli

Description : Which of the following statement(s) is/are true concerning carbon dioxide kinetics? a. The amount of carbon dioxide produced is equivalent to the amount of oxygen consumed b. Carbon dioxide levels ... tissues d. The amount of carbon dioxide excreted is a function of ventilation of perfused alveoli

Last Answer : Answer: a, c, d The total amount of carbon dioxide produced by systemic metabolism is roughly equivalent to the amount of oxygen consumed (100-120 cc/m2/min, 200 cc/min in a typical ... carbon dioxide excreted is a function of ventilation of perfused alveoli (i.e. the alveolar ventilation/min).

L.P.G. is mostly liquefied (1) hydrogen (2) Oxygen (3) butane (4) methane

Description : L.P.G. is mostly liquefied (1) hydrogen (2) Oxygen (3) butane (4) methane

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L.P.G. is mostly liquefied (1) hydrogen (2) oxygen (3) butane (4) methane

Description : L.P.G. is mostly liquefied (1) hydrogen (2) oxygen (3) butane (4) methane

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If you could cut off the whole world’s power supply and do whatever you want with it, what would you do?

Description : If you could cut off the whole world’s power supply and do whatever you want with it, what would you do?

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Which of the following countries contributes the maximum to the world’s diamond supply? (1) Russia (2) U.S.A. (3) Japan (4) South Africa

Description : Which of the following countries contributes the maximum to the world’s diamond supply? (1) Russia (2) U.S.A. (3) Japan (4) South Africa

Last Answer : (1) Russia Explanation: The world's largest producers of natural diamonds are Russia, Congo and Botswana, all together accounting for 60% of the global diamond production. The governmentrun super-major ALROSA accounts for approximately 95% of all Russian diamond production.

Which of the following countries contributes the maximum to the world’s diamond supply ? (1) Russia (2) U.S.A. (3) Japan (4) South Africa

Description : Which of the following countries contributes the maximum to the world’s diamond supply ? (1) Russia (2) U.S.A. (3) Japan (4) South Africa

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Why do sneezes mostly (but not always) come in twos?

Description : Why do sneezes mostly (but not always) come in twos?

Last Answer : answer: Scientists have yet to come up with a good explanation for why most people sneeze the predictable two or three times, while others are wracked by staccato attacks. But the answer seems to lie in an ... twice (when I sneeze only once, it feels strange. Like I still have another sneeze in me.)

How does the light reaction of photosynthesis affect Earth’s supply of oxygen?

Description : How does the light reaction of photosynthesis affect Earth’s supply of oxygen?

Last Answer : by using chlorophyll fluorometers

Assertion `:` Myocardial infarction oftern results from a sudden decrease in coronary blood supply resulting in decreased oxygen supply. Reason `:` Th

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Last Answer : Assertion `:` Myocardial infarction oftern results from a sudden decrease in coronary blood supply ... If both Assertion & Reason are false.

What are dangers for smoking around an oxygen supply?

Description : What are dangers for smoking around an oxygen supply?

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What company will refill my oxygen supply at home?

Description : What company will refill my oxygen supply at home?

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In children the lungs are pale pink due to (a) Rich blood supply (b) Greater binding affinity of haemoglobin for oxygen (c) Formation of a higher percentage of oxyhaemoglobin as per higher metabolic rate (d) All of them

Description : In children the lungs are pale pink due to (a) Rich blood supply (b) Greater binding affinity of haemoglobin for oxygen (c) Formation of a higher percentage of oxyhaemoglobin as per higher metabolic rate (d) All of them

Last Answer : Ans:(a)

The closed circulatory system is more efficient. Since blood circulates only inside blood vessels it can do it with more pressure reaching farther distances between the organs where hematosis happens and the peripheral tissues. In addition the circulatory speed also heightens making possible more oxygen supply to great consuming tissues, like the muscle tissues that then can perform faster movements. Animals with an open circulatory system (with the exception of insects that do gas exchange independently from the circulation) are generally slower and have a low metabolic rate.

Description : The closed circulatory system is more efficient. Since blood circulates only inside blood vessels it can do it with more pressure reaching farther distances between the organs where hematosis ... exchange independently from the circulation) are generally slower and have a low metabolic rate.

Last Answer : What is the difference between octopuses and mussels regarding their circulatory systems?

A seed can germinate in the absence of (1) adequate light (2) supply of oxygen (3) suitable moisture (4) suitable temperature

Description : A seed can germinate in the absence of (1) adequate light (2) supply of oxygen (3) suitable moisture (4) suitable temperature

Last Answer : (1) adequate light Explanation: A seed can germinate in the absence of adequate light

(4) less soluble in blood than nitrogen at high pressure Explanation: Deep-sea divers have their oxygen supply mixed with helium in order to avoid the toxic nature of oxygen under extreme pressures. The Helium atom is much smaller than the Nitrogen molecule, has a smaller electron cloud and is less polarizable. It, therefore is less soluble in blood than nitrogen and prevents the formation of nitrogen bubbles in blood which blocks blood flow as the diver comes to the surface of the sea from underwater.

Description : (4) less soluble in blood than nitrogen at high pressure Explanation: Deep-sea divers have their oxygen supply mixed with helium in order to avoid the toxic nature of oxygen under extreme pressures. The ... blood which blocks blood flow as the diver comes to the surface of the sea from underwater.

Last Answer : The chemical bahaviour of an atom depends upon - (1) the number of protons in its nucleus (2) the number of neutrons in the nucleus (3) the number of electrons orbiting around the nucleus (4) the number of nucleons in the nucleus

Dilution method of disposing of sewage, is not preferred to A. When sewage is fresh B. When diluting water has high dissolved oxygen content C. When diluting water is used for water supply near the point of sewage disposed D. When the diluting water is having flow currents

Description : Dilution method of disposing of sewage, is not preferred to A. When sewage is fresh B. When diluting water has high dissolved oxygen content C. When diluting water is used for water supply near the point of sewage disposed D. When the diluting water is having flow currents

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A glass chimney stops an oil lamp from smoking because: A. It increases the supply of oxygen to the flame by convection B. The heat produced ensures complete C. Both to these (Answer) D. Neither of these

Description : A glass chimney stops an oil lamp from smoking because: A. It increases the supply of oxygen to the flame by convection B. The heat produced ensures complete C. Both to these (Answer) D. Neither of these

Last Answer : C. Both to these (Answer)

Oxygen blood supply to the heart depends on: a. blood acidity b. sympathetic tone c. blood viscosity d. al

Description : Oxygen blood supply to the heart depends on: a. blood acidity b. sympathetic tone c. blood viscosity d. al

Last Answer : all

Which one of the following is not the function of placenta? (a) Facilitates removal of carbon dioxide and waste material from embryo (b) Secretes oxytocin during parturition (c) Facilitates supply of oxygen and nutrients to embryo (d) Secretes estrogen

Description : Which one of the following is not the function of placenta? (a) Facilitates removal of carbon dioxide and waste material from embryo (b) Secretes oxytocin during parturition (c) Facilitates supply of oxygen and nutrients to embryo (d) Secretes estrogen

Last Answer : (b) Secretes oxytocin during parturition

Which one of the following pairs of structures is correctly matched with their corrected description? Structures Description (a) Tibia and fibula Both form parts of knee joint (b) Cartilage and cornea No blood supply but do require oxygen for respiratory need (c) Shoulder joint and Ball and socket type elbow joint of joint (d) Premolars and molars 20 in all and 3 rooted

Description : Which one of the following pairs of structures is correctly matched with their corrected description? Structures Description (a) Tibia and fibula Both form parts of knee joint (b) Cartilage and cornea No ... and socket type elbow joint of joint (d) Premolars and molars 20 in all and 3 rooted

Last Answer : (b) it is a non-living layer

Reduction in pH of blood will (a) decrease the affinity of haemoglobin with oxygen (b) release bicarbonate ions by the liver (c) reduce the rate of heartbeat (d) reduce the blood supply to the brain.

Description : Reduction in pH of blood will (a) decrease the affinity of haemoglobin with oxygen (b) release bicarbonate ions by the liver (c) reduce the rate of heartbeat (d) reduce the blood supply to the brain.

Last Answer : (a) decrease the affinity of haemoglobin with oxygen

Cancer cells interfere with cell functions in all the following ways except: a. they rob cells of their nutrients and induce cell starvation. b. they stimulate the immune system to produce destructive interferons. c. they clog the vascular network and reduce the oxygen supply to cells. d. they overwhelm cells through sheer force of numbers.

Description : Cancer cells interfere with cell functions in all the following ways except: a. they rob cells of their nutrients and induce cell starvation. b. they stimulate the immune system to produce destructive ... reduce the oxygen supply to cells. d. they overwhelm cells through sheer force of numbers.

Last Answer : b. they stimulate the immune system to produce destructive interferons.

Which of the following nursing interventions is appropriate when caring for the awake and oriented head injury patient? a) Supply oxygen therapy to keep blood gas values within normal range. The goal is to keep blood gas values within normal range to ensure adequate cerebral circulation.

Description : Which of the following nursing interventions is appropriate when caring for the awake and oriented head injury patient? a) Supply oxygen therapy to keep blood gas values within normal range. ... rails and application of mitts are the appropriate interventions in the agitated head-injured patient.

Last Answer : a) Supply oxygen therapy to keep blood gas values within normal range. The goal is to keep blood gas values within normal range to ensure adequate cerebral circulation.

For individuals known to be dying by virtue of age and/or diagnoses, which of the following signs indicate approaching death: a) Increased restlessness As the oxygen supply to the brain decreases, the patient may become restless. b) Increased wakefulness As the body weakens, the patient will sleep more and begin to detach from the environment. c) Increased eating For many patients, refusal of food is an indication that they are ready to die. d) Increased urinary output Based upon decreased intake, urinary output generally decreases in amount and frequency.

Description : For individuals known to be dying by virtue of age and/or diagnoses, which of the following signs indicate approaching death: a) Increased restlessness As the oxygen supply to the ... Increased urinary output Based upon decreased intake, urinary output generally decreases in amount and frequency.

Last Answer : a) Increased restlessness As the oxygen supply to the brain decreases, the patient may become restless.

In the event of cabin depressurization, the actions of the pilot will be to: a. Immediately commence a diversion to a suitable alternate b. Increase engine power to provide additional airflow to the pressurization systems c. Maintain the aeroplane altitude to prevent further damage to the airframe by over loading of the structure d. Commence a descent to an altitude where the supplemental oxygen supply is sufficient for all crew and passengers

Description : In the event of cabin depressurization, the actions of the pilot will be to: a. Immediately commence a diversion to a suitable alternate b. Increase engine power to provide additional ... a descent to an altitude where the supplemental oxygen supply is sufficient for all crew and passengers

Last Answer : d. Commence a descent to an altitude where the supplemental oxygen supply is sufficient for all crew and passengers

A seed can germinate in the absence of (1) adequate light (2) supply of oxygen (3) suitable moisture (4) suitable temperature

Description : A seed can germinate in the absence of (1) adequate light (2) supply of oxygen (3) suitable moisture (4) suitable temperature

Last Answer : adequate light

The function of the heart is to (1) Supply oxygen to the tissues (2) carry carbon dioxide from the tissues (3) throw away waste materials (4) pump blood to different parts of the body

Description : The function of the heart is to (1) Supply oxygen to the tissues (2) carry carbon dioxide from the tissues (3) throw away waste materials (4) pump blood to different parts of the body

Last Answer : pump blood to different parts of the body

Helium is added to the oxygen supply of deep sea divers because it is (1) less poisonous than nitrogen (2) Lighter than nitrogen (3) Readily miscible with oxygen (4) less soluble in blood than nitrogen at high pressure

Description : Helium is added to the oxygen supply of deep sea divers because it is (1) less poisonous than nitrogen (2) Lighter than nitrogen (3) Readily miscible with oxygen (4) less soluble in blood than nitrogen at high pressure

Last Answer : less soluble in blood than nitrogen at high pressure