Answer: Option [D]The correct answer is Parent Material. Parent material is the geologic material from which soil horizons form. When parent rock material is exposed to the atmosphere or when organic matter and/or minerals are deposited on the earth's surface, soil formation begins.
Answer: Option [A]The correct answer is Backswimmers.
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Answer: Option [B]The correct answer is Autotrophs. Heterotrophs are defined as living organisms that consume other organisms for food. There are three types of heterotrophs are herbivores, carnivores and omnivores, and detritivores.
Answer: Option [D]The correct answer is Calcium. Calcium is an essential macronutrient in plants, with concentrations in the shoot ranging from 0.1 to over 5% of dry wt (Marschner, 1995; White and Broadley, 2003). It thereby exhibits a dual function, both as a structural component of cell walls and membranes and as intracellular second messenger.
Answer: Option [A]The correct answer is Kerala. It is a protected area in the districts of Idukki, Kottayam and Pathanamthitta in Kerala. It is notable as an elephant reserve and a tiger reserve. The protected area covers an area of 925 km2.
