Question

In an experiment Rahul burnt 4 kg fuel and the heat produced was measured to be 160,000 kJ and Raj burnt 2 kg of fuel and heat produced was measured to be 100,000kJ. Calculate the net calorific value of the fuels.


90,000kJ/kg

9000kJ/kg

900,000kJ/kg

9kJ/kg

Answer 1

In English there are three articles: a, an, and the. Articles are used before nouns or noun equivalents and are a type of adjectiv,e. The definite article (the) is used before a noun to indicate that the identity of the noun is known to the reader.

Why has the percentage of CO2 in the air marginally increased to

only 0.4%, despite the large amount of CO2 released daily?In Drosophila flies, red eyes (R) are dominant to white eyes (r) and normal wings (W) are dominant to vestigial wings (w). Double heterozygotes WwRr are produced by crossing WWRR with a wwrr. A test cross was made by mating a RrWw fly with an rrww fly. The offspring phenotype numbers were (i) Red-eyed, normal wings: 368 (ii) Red-eyed, vestigial wings: 56 (iii) White-eyed, vestigial wings:336 (iv) White-eyes, normal wings: 40. What is the recombination frequency, as expressed as a percentage, for this cross