2691. With reference to Indian defence what is; the ‘Lakshya’?
A pilotless training aircraft
2692. Compasses were first used by ?
Chinese
2693. Which decaying vegetation produces organic acids which causes a breakdown of minerals?
Chemical weathering
2694. Who is the inventor of Geiger counter?
Geiger
2695. Rutherford"s scattering experiment related to the size of which thing?
Nucleus
2696. Which is the largest railway station of the world?
Grand Central Terminal; Chicago
2697. The Second World War led to the foundation of UNO in?
1945
2698. Alexander defeated the Indian ruler?
Porus
2699. In the case of a "test-tube baby" where does fertilisation take place?
Outside the mother"s body
2700. Tallest American President was ?
Abraham Lincoln