| 1 |
Cacti and Euphorbia are the desert plants which store water in their. |
- A. Fleshy leaves
- B. Freshy stems
- C. Freshy roots
- D. Freshy buds
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| 2 |
Which statement defines the net primary production in an ecosystem over a given time period? |
- A. The total amount of organic matter in the plants in excess of that used in respiration
- B. The total amount of organic matter used in respiration by all the organisms present
- C. The total amount of photosynthesis product from all plants
- D. The total amount of organic matter in all organisms present
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| 3 |
The productivity can be indicated by. |
- A. Consumption of CO2
- B. Consumption of O2
- C. Evolution of CO2
- D. Evolution of N2
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| 4 |
In Sindh, the desert ecosystem is called. |
- A. Thar
- B. Sahara
- C. Gobi
- D. thal
|
| 5 |
The earth surface covered with water is |
- A. 35%
- B. 11%
- C. 21%
- D. 33%
|
| 6 |
The zoological name of leopard cat is. |
- A. Fells domestica
- B. Felis leo
- C. Feilsbengalensis
- D. Felisparodus
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| 7 |
Water used for industrial purposes is about |
- A. 9%
- B. 90%
- C. 70%
- D. 50%
|
| 8 |
a succulent plant has water stored in tissue. |
- A. Cacti
- B. Moss
- C. Yarrow
- D. Spruce
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| 9 |
In which type of ecosystem in the smallest fraction of nutrients present in soil. |
- A. Forest
- B. Savanna
- C. Grass land
- D. Desert
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| 10 |
The average rain fall in temperate deciduous forest is between |
- A. 600-1500 mm
- B. 650 -1500 mm
- C. 750-1500 mm
- D. 700 -1500 mm
|