IAS PYQTopic: Ecology & Ecosystems (43 Questions)
Consider the following statements:
- I.Without the atmosphere, temperature would be well below freezing point everywhere on the Earth's surface.
- II.Heat absorbed and trapped by the atmosphere maintains our planet's average temperature.
- III.Atmosphere's gases, like carbon dioxide, are particularly good at absorbing and trapping radiation.
Which of the statements given above are correct?
Related topics in Environment and Ecology
With reference to the planet Earth, consider the following statements:
- I.Rain forests produce more oxygen than that produced by oceans.
- II.Marine phytoplankton and photosynthetic bacteria produce about 50% of world's oxygen.
- III.Well-oxygenated surface water contains several folds higher oxygen than that in atmospheric air.
Which of the statements given above is/are correct?
Related topics in Environment and Ecology
The organisms "Cicada, Froghopper and Pond skater" are:
Related topics in Environment and Ecology
Which one of the following shows a unique relationship with an insect that has coevolved with it and that is the only insect that can pollinate this tree ?
Related topics in Environment and Ecology
Consider the following:
- 1.Butterflies
- 2.Fish
- 3.Frogs
How many of the above have poisonous species among them?
Related topics in Environment and Ecology
2023
Which of the following organisms perform waggle dance for others of their kin to indicate the direction and the distance to a source of their food?
2023
Consider the following trees:
1. Jackfruit (Artocarpus heterophyllus)
2. Mahua (Madhuca indica)
3. Teak (Tectona grandis)
How many of the above are deciduous trees?
2023
Consider the following statements :
* Statement-I : The soil in tropical rain forests is rich in nutrients.
* Statement-II : The high temperature and moisture of tropical rain forests cause dead organic matter in the soil to decompose quickly.
Which one of the following is correct in respect of the above statements?
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