The theory of inheritance of acquired characters was propounded by _____.

1. 1. Charles Darwin
   2. Gregor Mendel
   3. J.B Lamarck
   4. Weismann

Historically, who amongst the following, recognized in 1727 A.D that sunlight and air are important for the growth of plants?

1. 1. Joseph Priestly
   2. Jan Ingenhousz
   3. Stephen Hales
   4. Lavoiser

Who amongst the following, started in 1850, a scientific approach to determine the role of mineral elements in the healthy growth and development of plants?

1. 1. Arnon and Knop
   2. Sachs and Knop
   3. Sachs and Stout
   4. Arnon and Stout

Who discovered the law of attraction and repulsion between electric charges?

1. 1. Coulomb
   2. Graham Bell
   3. Marconi
   4. Reumer

Who, amongst the following, discovered that the atoms of some naturally-occurring elements were not exactly alike and when?

1. 1. F.W. Aston-1919
   2. Neils Bohr-1913
   3. Albert Einstein-1911
   4. Dalton-1909

Who, amongst the following, was the first to observe ultra violet rays and when?

1. 1. William Harschel-1800
   2. Johann Wilhelm Ritter-1801
   3. Rutherford-1911
   4. Auguste Comte-1844

Who invented the Lift and when?

1. 1. Michael Faradary-1831
   2. E.G. Otis-1852
   3. Thomas Alva Edison- 1879
   4. John Logie Barid-1926

Who invented Radar?

1. 1. J. H. Van Tassel
   2. Wilhelm K. Roentgen
   3. P.T. Farnsworth
   4. A.H. Taylor and Leo C. Young

Who invented the Microprocessor?

1. 1. Robert Noyce and Gordon Moore
   2. Georges Claude
   3. Gregory Pincus
   4. Michael de Bakey

Who invented optical fiber?

1. 1. Samuel Chohen
   2. Narinder Kapany
   3. Percy L. Spencer
   4. T.H. Maimah