Related Questions

Which of the following ecosystems covers the largest area of the earth's surface ?
A Desert Ecosystem
B Mountain Ecosystem
C Fresh water Ecosystem
D Marine Ecosystem
Which of the following organisms fix nitrogen in aquatic ecosystems?
A Fungi
B Chemoautotrophs
C Cyanobacteria
D Phytoplankton
Nitrogen is fixed in ecosystems in ways stated below. Which one of the statements below is false?
A By cyanobacteria
B By electrical discharges in the atmosphere
C By industrially synthesised fertilizer
D By denitrification
Which one of the following ecosystems covers the largest area of the earth's surface?
A Desert Ecosystem
B Grassland Ecosystem
C Mountain Ecosystem
D Marine Ecosystem
When the two ecosystems overlap each other, the area is called
A Habitat
B Niche
C Ecotone
D Ecotype
What environmental issue involves the excessive use of fertilizers and run-off chemimls into bodies of water. causing oxygen depletion and harm to aquatic ecosystems?
A Acid rani
B Eutrophication
C Desertification
D Deforestation
The average age of 12 children is 15 years. If another child comes the average age comes to 13. What is the age of the new child?
A 11 years
B 7 years
C 9 years
D None
The average age of 12 children is 15 years. If another child comes the averages age comes to 13. What is the age new child?
A 13.85 years
B 7 years
C 9 years
D 5 years
Ali, Babu, Chinmoy, Drabir and Ebadur are five athletes taking part in a race. Ali finishes ahead of Babu, Chinmoy finishes behind Drabir, Ali comes in behind Ebadur, Babu is ahead of Drabir. Who comes in between Ail & Drabir?
A Chinmoy
B Ebadur
C Babu
D Babu and Ebadur
A man sells chocolates which are in the boxes. Only either full box or half a box of chocolates can be purchased from him. A customer comes and buys half the number of boxes which the seller had plus half box more. A second customer comes and purchases half the remaining number of boxes plus half a box. After this the seller is left with no chocolate boxes. How many chocolate boxes the seller had initially?
A 2
B 3
C 4
D 3.5
E None of these

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