Answer: B) Brother Explanation: Brother Justification: Daughter of uncle's father -- Uncle's sister -- Mother; Mother's son -- Brother.

Answer: A) Distance Explanation: Light Year is related to Distance. It is the unit of Distance. It is about 9.5 Trillion Kms or 5.9 Trillion miles.   It is the distance that light travels in vaccum in one julian year i.e, 365.25 days.

Answer: A) chronology Explanation: In chronology, the sequence of events from the latest to the oldest events or vice versa is laid. In this case, the details of how a particular event or place or thought developed through time is detailed in a chronology.    Hence, the term chronology is a type of detail.

Answer: A) TRUE Explanation: True, the given statement that a myocardial infarction is a heart attack.

Answer: C) Engine Explanation: Food is processed by the stomach to provide energy for the functioning of the body.Similarly, fuel is processed by the engine to provide energy for the functioning of automobile.

Answer: A) Yes Explanation: Yes, plant cells have Mitochondria. While plant cells have chloroplasts to photosynthesize, they also require ATP for cellular functions, and do use oxygen to break down some of the sugar they produce in order to generate that ATP. They need mitochondria for this. In particular, at night when there is no light, plants undergo cellular respiration since there is no sunlight to photosynthesize. They do, however, produce far more sugar and oxygen through photosynthesis than they use up in respiration.

Answer: D) 8 Explanation: There are 8 different types of Soils present in India. They are primarily differentiated on the basis of composition and structure. They are :: 1.  Alluvial soils,  2.  Black soils, 3.  Red soils, 4.  Laterite and Lateritic soils, 5.  Forest and Mountain soils, 6.  Arid and Desert soils, 7.  Saline and Alkaline soils and 8.  Peaty and Marshy soils.

Answer: B) Koch Explanation: