കടലിൽ നീന്തുന്നത് പുഴയിൽ നീന്തുന്നതിനേക്കാൾ എളുപ്പമാണ്. കാരണം :
Aകടൽ വെള്ളത്തിൽ തരംഗങ്ങൾ ഉള്ളതുകൊണ്ട്
Bകടൽ വെള്ളത്തിൻ്റെ സാന്ദ്രത പുഴയിലെ വെള്ളത്തേക്കാൾ കൂടുതലാണ്
Cപ്ലവക്ഷമബലം കടൽ വെള്ളത്തിൽ കുറവായതുകൊണ്ട്
Dകടലിൽ കൂടുതൽ വെള്ളം ഉള്ളതുകൊണ്ട്
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Related Questions:
Which of the following statements about the crops and resources utilized in the Nile valley is correct?
- Rice and cotton were summer crops, while wheat and barley were winter crops.
- Palm trees were grown, but their parts were not significantly utilized.
- The irrigation system primarily supported the cultivation of grains.
What is the final state of dead plant material and animal residues after complete decomposition?
- They completely evaporate, leaving no residue.
- They are gradually decomposed until their original identity is no longer recognizable, at which point they are considered soil organic matter (SOM).
- They are transformed into living microbial biomass and remain as such indefinitely.
Which statement about the supply of nitrogen and phosphorus in unmanaged ecosystems is incorrect?
- Most nitrogen and phosphorus for plant growth in unmanaged ecosystems is supplied by decomposition.
- The decomposition of plant litter and soil organic matter provides essential nutrients.
- In unmanaged ecosystems, external fertilization is the primary source of nitrogen and phosphorus.
According to Lindemann's Ten Percent Law, what percentage of organic matter is stored as flesh during the transfer of food from one trophic level to the next?
Which pollutant is primarily responsible for smog formation?