അന്തരീക്ഷത്തിൽ ഏറ്റവും കൂടുതൽ കാണപ്പെടുന്ന വാതകം ഏത് ?
Aഓക്സിജൻ
Bആർഗൺ
Cനൈട്രജൻ
Dകാർബൺഡൈ ഓക്സൈഡ്
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Related Questions:
How old are Lake Baikal and Lake Tanganyika estimated to be?
Which of the following processes are involved in the decomposition of organic matter?
- Leaching by water transfers soluble materials away from decomposing organic matter.
- Fragmentation by soil animals breaks large pieces of organic matter into smaller ones.
- Chemical alteration of dead organic matter is primarily a consequence of microbial activity.
- Photosynthesis is a primary process contributing to decomposition.
Which of the following statements accurately describe the historical development and characteristics of urban centers in desert regions?
- Cities in desert regions of Asia and Africa primarily emerged in the central, most arid parts of the deserts.
- Ancient cities like Cairo, Damascus, and Baghdad were significant hubs for administration, learning, faith, trade, and transit.
- The discovery of oil wealth in West Asia and North Africa has had no impact on the creation or modernization of cities in these areas.
- Mecca and Medina are recognized as the holiest cities within the Islamic faith.
Which of the following statements correctly identifies ways nutrients are lost from ecosystems?
- Nutrients can be lost from ecosystems through leaching.
- Wind and water erosion contribute to nutrient loss.
- Trace gas emission is not a known mechanism for nutrient loss.
- Harvesting materials from an ecosystem leads to nutrient removal.
Nitrogen-fixing bacteria like Rhizobium are associated primarily with which part of the nitrogen cycle?