Answer: Option [C]Over 97 percent of the earth's water is found in the oceans as salt water. Two percent of the earth's water is stored as fresh water in glaciers, ice caps, and snowy mountain ranges. That leaves only one percent of the earth's water available to us for our daily water supply needs.
Answer: Option [A]The correct answer is dB. We measure sound intensity (also referred to as sound power or sound pressure) in units called decibels. Decibels (dB) are named in honor of Alexander Graham Bell, the inventor of both the telephone and the audiometer.
Answer: Option [C]The correct answer is Geothermal energy. Geothermal energy is the heat produced deep in the Earth's core. Geothermal energy is a clean, renewable resource that can be harnessed for use as heat and electricity. Geothermal energy is heat that is generated within the Earth.
Answer: Option [B]The correct answer is Andhra Pradesh. Rajiv Gandhi Wildlife Sanctuary, formerly known as Nagarjunasagar-Srisailam Tiger Reserve spreads over five districts Nalgonda, Mahboobnagar, Kurnool, Prakasam and Guntur in Andhra Pradesh. The landscape is hilly and varies from plains to precipitous cliffs.
Answer: Option [A]The correct answer is Autotrophs. Autotrophs or primary producers are organisms that acquire their energy from sunlight and materials from nonliving sources. Algae, higher plants, and some bacteria and protists are important autotrophs in running waters. Heterotrophs obtain energy and materials by consuming living or dead organic matter.
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