Q: What type of resource is limited in supply and cannot be replaced except over millions of years? Read this paragraph and choose the correct option from the provided answers: Natural resource that is limited in supply and cannot be replaced except over millions of years. Choices: - capital resources - renewable energy - human resources - natural resource A:
natural resource

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Q: Respiratory distress syndrome results from insufficient production of what? Read this paragraph and choose the correct option from the provided answers: Respiratory System: Respiratory Distress Syndrome Respiratory distress syndrome (RDS) primarily occurs in infants born prematurely. Up to 50 percent of infants born between 26 and 28 weeks and fewer than 30 percent of infants born between 30 and 31 weeks develop RDS. RDS results from insufficient production of pulmonary surfactant, thereby preventing the lungs from properly inflating at birth. A small amount of pulmonary surfactant is produced beginning at around 20 weeks; however, this is not sufficient for inflation of the lungs. As a result, dyspnea occurs and gas exchange cannot be performed properly. Blood oxygen levels are low, whereas blood carbon dioxide levels and pH are high. The primary cause of RDS is premature birth, which may be due to a variety of known or unknown causes. Other risk factors include gestational diabetes, cesarean delivery, second-born twins, and family history of RDS. The presence of RDS can lead to other serious disorders, such as septicemia (infection of the blood) or pulmonary hemorrhage. Therefore, it is important that RDS is immediately recognized and treated to prevent death and reduce the risk of developing other disorders. Medical advances have resulted in an improved ability to treat RDS and support the infant until proper lung development can occur. At the time of delivery, treatment may include resuscitation and intubation if the infant does not breathe on his or her own. These infants would need to be placed on a ventilator to mechanically assist with the breathing process. If spontaneous breathing occurs, application of nasal continuous positive airway pressure (CPAP) may be required. In addition, pulmonary surfactant is typically administered. Death due to RDS has been reduced by 50 percent due to the introduction of pulmonary surfactant therapy. Other therapies may include corticosteroids, supplemental oxygen, and assisted ventilation. Supportive therapies, such as temperature regulation, nutritional support, and antibiotics, may be administered to the premature... Choices: - carbon dioxide - alveoli - lung tissue - pulmonary surfactant A:
(Answer)
pulmonary surfactant

Ques: Q: Roots grow in length and width from the primary and secondary what? Read this paragraph and choose the correct option from the provided answers: Roots grow in length and width from primary and secondary meristem. Choices: - pistil - frill - leaf - meristem A:
Ans: meristem

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Q: What laws regulate radiation doses to which people can be exposed? Read this paragraph and choose the correct option from the provided answers: Radiation Protection Laws regulate radiation doses to which people can be exposed. The greatest occupational whole-body dose that is allowed depends upon the country and is about 20 to 50 mSv/y and is rarely reached by medical and nuclear power workers. Higher doses are allowed for the hands. Much lower doses are permitted for the reproductive organs and the fetuses of pregnant women. Inadvertent doses to the public are limited to 1 / 10 of occupational doses, except for those caused by nuclear power, which cannot legally expose the public to more than. Choices: - medical regulation laws - voltage protection laws - dose regulation laws - radiation protection laws A:
(A).
radiation protection laws

Ques:Q: What group of elements cannot conduct electricity? Read this paragraph and choose the correct option from the provided answers: Nonmetals are elements that generally cannot conduct electricity. They are the second largest class of elements after metals. Examples of nonmetals include hydrogen, carbon, chlorine, and helium. Choices: - carbonates - phosphates - metals - nonmetals A:

Ans:nonmetals

Question: Q: In what type of body of water is most of the earth's water located? Read this paragraph and choose the correct option from the provided answers: Most of Earth's water is salt water in the oceans. As seen below, only 3 percent of Earth's water is fresh ( Figure below ). Freshwater is water that contains little or no dissolved salt. Most freshwater is frozen in ice caps and glaciers. Glaciers cover the peaks of some tall mountains. For example, the Cascades Mountains in North America and the Alps Mountains in Europe are capped with ice. Ice caps cover vast areas of Antarctica and Greenland. Chunks of ice frequently break off ice caps. They form icebergs that float in the oceans. Choices: - streams - rivers - seas - oceans A:
Answer:
oceans