Answer: A) Spleen Explanation: Endocrine glands are glands of the endocrine system that secrete their products, hormones, directly into the blood rather than through a duct.   The major glands of the endocrine system include the pineal gland, pituitary gland, pancreas, ovaries, testes, thyroid gland, parathyroid gland, hypothalamus and adrenal glands.

Answer: A) Theory Explanation: 'Hypothesis' is a word that gives a brief explanation of the concepts based on the limited evidence. The word 'theory' is closest in meaning to it.

Answer: B) Ladakh Explanation:

Answer: D) All the above Explanation:    1) SO2                  2) CH2Cl2                3) PCl3 How to check the given molecules are polar or non polar : If the electronegativity of the two bonded atoms are different then the bond is polar. Although, some molecules contain polar bonds, the molecule may be non-polar. If the polarity of all the bonds present in the molecule are cancel each other then molecule is non-polar.   In the given options, SO2  is polar because the dipole moments on the O do not cancel. PCl3  is polar because the P-Cl bonds do not cancel out. CH2Cl2  polar because the C-Cl bonds do not cancel.   Hence, in brief, Polar molecules are molecules with net dipole due to the presence of partial positive and partial negative charge. For example, water is a polar molecule that has partial positive and partial negative charge on it. CO2 is a non polar compound.   Therefore, all the given options SO2, CH2Cl2 and PCl3 are Polar molecules.

Answer: D) Ammavin Aran Explanation: The AIADMK IT Wing has launched the first-of-its-kind women safety application in Tamil Nadu. The app is called 'Ammavin Aran' meaning 'mother's fortress'.

Answer: B) 392 Explanation: The sum of the digits in 708, 618 and 816 is 15, but not in 392.

Answer: A) 30 Explanation: Speed has been identified as a key risk factor in road traffic injuries, influencing both the risk of a road crash as well as the severity of the injuries that result from crashes. Speeding is a factor in 30 % of all fatal accidents.

Answer: C) Tiredness Explanation: From the aboe given options, only extreme and unexplained tiredness is the symptom of AIDS.   The other symptoms of AIDS include: recurring fever, thrush — a thick, whitish coating of the tongue or mouth that's caused by a yeast infection and sometimes accompanied by a sore throat, diarrhea that lasts more than a week, headaches, lightheadedness, and/or dizziness.