Questions

A Proprietorship is a group that has exclusive business rights and titles. A proprietorship is a business with a single owner and not registered as a corporation, partnership or limited liability company.

Stars twinkle because they’re so far away from Earth that when light from the stars passes through the atmosphere, it is bent countless times due to refraction, making it look like as if they were blinking. The sun and other planets doesn’t twinkle because it’s too close to Earth compared to other stars.

In chemistry, a metal is an element that readily forms positive ions (cations) and has metallic bonds. Metals are opaque, lustrous elements that are good conductors of heat and electricity. Most metals are malleable and ductile and are, in general, denser than the other elemental substances.

Examples of metals are aluminium, copper, iron, tin, gold, lead, silver, titanium, uranium, and zinc.

Here Se - Selenium is an element but is not a metal, S - Sulphur is not a metal and I - Iodine is also not a metal.

Hence, Zn - Zinc is the only metal in the given options.

Dammon Galgut

Cosmology is the scientific study of the large scale properties of the universe as a whole. It endeavors to use the scientific method to understand the origin, evolution and ultimate fate of the entire Universe.

Depending on the outcome of the observations, the theories will need to be abandoned, revised or extended to accommodate the data. The prevailing theory about the origin and evolution of our Universe is the so-called Big Bang theory.

Sr. No             Minister                         Portfolio

 1.           Shri Narendra Modi         Prime Minister and also in-charge of:

                                                           – Ministry of Personnel
                                                            – Public Grievances and Pensions
                                                            – Department of Atomic Energy
                                                            – Department of Space

  All important policy issues and all other portfolios not allocated to any Minister.

  2.           Shri Raj Nath Singh         Minister of Home Affairs

  3.           Smt. Sushma Swaraj       Minister of External Affairs

  4.           Shri Arun Jaitley            -  Minister of Finance

                                                    – Minister of Corporate Affair

 5.           Shri Nitin Jairam Gadkari   – Minister of Road Transport & Highway

                                                      – Minister of shipping 

                                                      – Minister of Water Resources, River Development & Ganga Rejuvenation

 6.           Suresh Prabhu                     Minister of Commerce & Industry

 7.           D.V Sadananda Gowda        Minister of Statistics & Programme Implementation

 8.           Sushri Uma Bharati             Minister of Drinking Water & Sanitation

 9.           Nirmala Sitharaman            Minister of Defence

 10.         Mukhtar Abbas Naqvi          Minister of Minority Affairs

 11.         Shri Ramvilas Paswan         Minister of Consumer Affairs, Food & Public Distribution

 12.         Maneka Sanjay Gandhi       Minister of Women & Child Development

 13.         Shri Ananth Kumar          – Minister of Chemicals & Fertilizers
                                                    – Ministry of Parliamentary Affairs

 14.         Shri. Ravi Shankar Prasad    – Minister of Law & Justice                                                                                                    – Minister of Electronics & Information Technology         

 15.         Shri Jagat Prakash Nadda      Minister of Health & Family Welfare

16.         Ashok Gajapathi Raju Pusapati     Minister of Civil Aviation

17.         Shri. Anant Geete                      Minister of Heavy Industries & Public Enterprises     

18.         Smt. Harsimrat Kaur Badal         Minister of Food Processing Industries

19.         Shri Narendra Singh Tomar         – Minister of Rural Development
                                                             – Minister of Panchayati Raj
                                                            – Minister of Drinking Water & Sanitation

20.         Shri Chaudhary Birender Singh      Minister of Steel

21.         Shri Jual Oram                              Minister of Tribal Affairs

22.         Shri Radha Mohan Singh                Minister of Agriculture & Farmers Welfare          

23.         Shri Thawar Chand Gehlot              Minister of Social Justice & Empowerment

24.         Smt. Smriti Irani                           – Minister of Textiles
                                                                – Minister of Information & Broadcasting            

25.         Dr Harsh Vardhan                         – Minister of Science & Technology
                                                                – Minister of Earth Sciences
                                                               – Minister of Environment, Forest & Climate Change

26.          Prakash Javadekar                        Human Resource Development

27.          Piyush Goyal                                 – Minister of Railways

                                                                – Minster of Coal

28.         Dharmendra Pradhan                     – Minister of Petroleum & Natural Gas

                                                               – Minister of Skill Development & Enterprise

Tetraethyl lead is a highly toxic compound used as a gasoline additive.

Tetraethyl lead abbreviated as TEL, is an organo lead compound with the formula (CH₃CH₂)₄Pb. It is a petro-fuel additive which in turn caused increased vehicle performance. This is also used as an antiknock agent in gasoline and jet fuels. Tetraethyl lead is absorbed rapidly by the skin, the lungs, and the gastrointestinal tract. It is converted to triethyl lead, which might be responsible for its toxicity.