A. Cotton
B. Poplar
C. Bagasse
D. Rice straw
Show AnswerAnswer= Option B
Environmental Science
Rectified spirit contains alcohol about ?
A. 80%
B. 95%
C. 70%
D. 85%
Show AnswerAnswer= Option B
Humming bird belongs to a category called ?
A. Ectotherm
B. Endotherm
C. Exotherm
D. Heterotherm.
Show AnswerAnswer= Option B
Which of the following elements is not present abundantly in earth’s crust ?
A. Silicon
B. Radium
C. Aluminum
D. Carbon
Show AnswerAnswer= Option B
Basic metals can be converted into gold by ?
A. Heating
B. Beating
C. Artificial nuclear radioactivity
D. Chemical reaction
Show AnswerAnswer= Option C
One of the main function of the earth’s ozone layer is to ?
A. Prevent global warming
B. Filter out ultraviolet rays
C. Absorb pollution
D. All of the above
Show AnswerAnswer= Option B
Study of life in outer space is known as ?
A. Endobiology
B. Exobiology
C. Enterobiology
D. Neobiology
E. Micro biology
Show AnswerAnswer= Option B
The fourth state of matter is?
A. Water
B. Salts
C. Vapours
D. Plasma
Show AnswerAnswer= Option D
About 50% of the Earth’s crust, including the waters on the Earth and atmosphere, is?
A. Oxygen
B. Cabon Dioxide
C. Silicon
D. Clay
Show AnswerAnswer= Option A
Acid rain is mainly caused by emissions of __________ in the atmosphere?
A. Sulfur Dioxide and Potassium Nitrate
B. Sulfur and Charcoal
C. Nitrogen Oxide and Potassium Nitrate
D. Sulfur Dioxide and Nitrogen Oxide
Show AnswerAnswer= Option D