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CSS 2026
CSS 2026General Science & AbilityQ. 4
(a) Describe the principle of hydroelectric power generation. What environmental and geographical constraints limit the widespread development of hydropower? (b) Describe the hydrosphere and the major components of Earth's water. How does the water cycle maintain the distribution of freshwater? (c) Explain the causative agent, mode of transmission, and life cycle of the dengue virus. How does the Aedes mosquito contribute to the spread of the disease? (d) Discuss the role of Decision Support Systems (DSS) in organizational management and strategic planning.
#cssnexus #Hydropower #Water Cycle #Dengue
CSS Nexus21 Oct 2026
CSS 2026General Science & AbilityQ. 6
(a) A population of 120 individuals contains 45 engineers, 30 teachers, and the rest are administrators. A simple random sample of 6 is selected. (i) Probability that exactly 3 engineers are included? (ii) Probability that the sample contains no teachers? (b) A length is measured five times: 12.478 m, 12.463 m, 12.481 m, 12.469 m, 12.472 m. Determine the absolute error between the exact average and the rounded average. (c) Evaluate the argument "Artificial Intelligence will reduce employment because automation replaces human labor." (d) A number leaves remainder 5 when divided by 12 and remainder 4 when divided by 7. Find the smallest such positive integer and its remainder when divided by 9.
#cssnexus #Probability #Combinations #Measurement Error
CSS Nexus21 Oct 2026