Muscle fatigue is caused by the accumulation of___________
(A) Uric acid
(B) Lactic acid
(C) Oxalacetic acid
(D) Fyruvie acid
An element that does not occur in nature but can be produced artificially is__________
(A) Plutonium
(B) Uranium
(C) Radium
(D) Thorium
What is the element required for solar energy conversion ______
(A) Ultra pure carbon
(B) Silicon
(C) Beryllium
(D) Tantalum
Which pollutant from motor car exhaust causes mental disease _____
(A) Carbon dioxide
(B) Lead
(C) Â Sulpher Dioxide
(D) Mercury
what kind of soil is treated with gypsum to make it suitable for cropping______
(A) Alkaline
(B) Acidic
(C) Waterlogged
(D) Soil with excessive clay content
Which one is the world's largest mangrove forest(s)
(A) Changa Manga Forest
(B) Â Amazon Forest
(C) Sundarbans Forest
(D) None of the above