Laughing gas has chemical composition of following two elements ?
Laughing gas has chemical composition of following two elements ?
A. Nitrogen + Hydrogen
B. Nitrogen + Carbon
C. Nitrogen + Oxygen
D. Oxygen + Carbon
E. None of these
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Acid rain is mainly caused by emissions of __________ in the atmosphere?
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 OxideThe movement of earth around sun brings ________?
The movement of earth around sun brings ________?A. Tornadoes
B. Rainfall
C. Seasons
D. EarthquakesIn blood, the percentage of water is___________?
In blood, the percentage of water is___________?A. 75%
B. 85%
C. 90%
D. 95%Diamond is a very expensive ornament. It is composed of a single element ___________?
Diamond is a very expensive ornament. It is composed of a single element ___________?
A. Carbon
B. Gold
C. Silver
D. Platinum
E. None of theseBt seed is associated with:___________?
Bt seed is associated with:___________?A. Rice
B. Wheat
C. Cotton
D. OilseedBt stands for Bacillus thuringiensis – a soil bacterium which contains a toxic gene called Bt gene. The aim is to make the cotton crop resistant to bollworm.. The cotton incorporated the cry1Ac gene from the soil bacterium Bacillus thuringiensis (Bt), making the cotton toxic to bollworms. It is a cheaper alternative to Bt cotton hybrid seed.
Entomology Is the Study of___________?
Entomology Is the Study of___________?
A. worms
B. insects
C. Animals
D. All of these