Answer: C) 36 kmph Explanation: Given speed of the first train = 60 km/hr = 60 x 5/18 = 50/3 m/s Let the speed of the second train = x m/s Then, the difference in the speed is given by 503 - x = 12018 => x = 10 m/s => 10 x 18/5 = 36 km/hr

Answer: C) 7 Explanation:

Answer: A) oxygen, nitrogen, carbon, hydrogen, sulfur, and phosphorus Explanation: Living organisms often contain trace amounts of several elements, but the most abundant ones are oxygen, carbon, hydrogen, nitrogen, calcium, sulphur and phosphorus.

Answer: B) Soil Explanation: Plants receive their nutrients mainly from Soil. Because Soil contains all Minerals, Water, Humus and some useful Microbes which are responsible for the proper Growth of the Plants.

Answer: A) 4 Explanation: Similar small figures are increasing by one in each of the bigger figure.

Answer: C) The cell uses information from messenger RNA to produce proteins Explanation: Translation is the process by which a protein is synthesized from the information contained in a molecule of messenger RNA (mRNA). During translation, an mRNA sequence is read using the genetic code, which is a set of rules that defines how an mRNA sequence is to be translated into the 20-letter code of amino acids, which are the building blocks of proteins.   In short, during the process of translation source language text is conveyed to destination language.

Answer: C) Pedro Cabral Explanation: In April 1500, Brazil was claimed by Portugal on the arrival of the Portuguese fleet commanded by Pedro Alvares Cabral.

Answer: D) Prevent Explanation: