Q.4663·Miscellaneous·2021·EasyWhile studying vegetation of an area, terms like ‘population’ and ‘community’ are often used. Which one of the following statements best describes a population?View question
Q.4664·Miscellaneous·2021·EasyIn the human body, blood flows through a process of double circulation. Which one of the following statements is true in this regard?View question
Q.4665·Miscellaneous·2021·EasyIn which of the following groups of organisms, is food material broken down outside the body and absorbed?View question
Q.4666·Miscellaneous·2021·EasyRefraction of light, as it enters from one transparent medium to another, is due toView question
Q.4667·Miscellaneous·2021·EasyA bus starting from a bus-stand and moving with uniform acceleration attains a speed of 20 km/h in 10 minutes. What is its acceleration?View question
Q.4668·Miscellaneous·2021·EasyWhich one of the following is the correct reactivity order of metals reacting with dilute HCl?View question
Q.4669·Miscellaneous·2021·EasyWhich one of the following acids is secreted by leaves of Nettle that causes painful stings?View question
Q.4670·Miscellaneous·2021·EasyWhich of the following statements is/are correct? 1. All the bases are alkali. 2. All alkalis dissolve in water. 3. Alkalis are soapy to touch, bitter in taste and corrosive in nature. Select the correct answer using the code given below :View question
Q.4671·Miscellaneous·2021·EasyWhich one of the following materials is present in a guard tube (drying tube) that is used for preparation of HCl gas?View question
Q.4672·Miscellaneous·2021·EasyFertilizers are used to obtain higher yields of crops. However, all nutrients are usually not available in fertilizers. Which one of the following nutrients is usually not available in fertilizers?View question
Q.4673·Miscellaneous·2021·EasyIf a + b + c = 0, then which of the following are correct? 1. a^3 + b^3 + c^3 = 3abc 2. a^2 + b^2 + c^2 = -2(ab + bc + ca) 3. a^3 + b^3 + c^3 = -3ab(a + b) Select the correct answer using the code given below:View question
Q.4674·Miscellaneous·2021·EasyFor what integral value of x is (12 / (7 - 6)) = (7 / (5 - x))?View question
Q.4675·Miscellaneous·2021·EasyWhat is the approximate percentage of carbon in the Earth’s crust?View question
Q.4676·Miscellaneous·2021·EasyWhat is [1 / (bc(a - b)(a - c))] + [1 / (ca(b - c)(b - a))] + [1 / (ab(c - a)(c - b))] equal to?View question
Q.4677·Miscellaneous·2021·EasyWhich one of the following fractions will have minimum change in its value if 3 is added to both the numerator and the denominator of all the fractions?View question
Q.4678·Miscellaneous·2021·EasyLet the average score of a class of boys and girls in an examination be p. The ratio of boys and girls in the class is 3:1. If the average score of the boys is (p + 1), then what is the average score of the girls?View question
Q.4679·Miscellaneous·2021·EasyThe incomes of A, B and C are in the ratio 7:9:12 and their expenditures are in the ratio 8:9:15. If A’s saving is one-fourth of his income, then the ratio of savings of A, B and C isView question
Q.4680·Miscellaneous·2021·EasyA train 200 m long passes a platform 100 m long in 10 seconds. What is the speed of the train?View question