Answer: Petroleum exports
Explanation:
Saudi Arabia's oil exports are a major economic branch. Almost all economic income in the country (about 90%) is based on oil exports. Oil in Saudi Arabia was discovered in 1932, and since then, it has become a major economic factor in the country. Before the discovery of oil, Saudi Arabia was a poor country. The main activities were livestock and agriculture. Before discovering oil, Saudi Arabia based its economy on religious tourism, which still plays an important role in the country's economy.
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Answer: 10%
Explanation: In the study ,about the American children released in year 2003 describes about the child-to-parent assault records in one year (12 months).This study was done by Ullman and Straus. According to this study there were 10% cases that describes that the children are assaulting their parents in the form of verbal abuse, beating and other violence forms. This was a major violence issue at that time.This study revealed a major issue in the American society.
The correct answer is Serratia marcescens
The genus Serratia can be found in food, water and plants and its pathogenicity has been recognized since the 1960s. Serratia marcescens is the most frequently isolated species, with Serratia liquefaciens being the rarest, found in cases of infection related to the contact lens and transfusion of contaminated blood. The present summary reports an outbreak of infection by this agent, possibly related to the contamination of the sphygmomanometer used to calibrate the hemodynamic monitoring system.
Intravascular pressure monitoring systems are widely used in the hemodynamic assessment of critically ill patients. These systems consist of a fluid catheter, connected to the patient's intravascular space and an electronic transducer, which transforms the fluid pressure into electrical impulses, captured by a monitor. These systems are infused to prevent clots and must be calibrated periodically.
Answer: A) Shrinking by about 750,000 per year
Explanation: The population of Russia is Shrinking by about 750,000 per year. This is because of Low birth rates and abnormally high death rates. The overall life expectancy in Russia at birth is 72.4 years (66.9 years for males and 77.6 years for females).