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Why was the African catfish Clarias gariepinus introduced?

AHorticulture

BAquaculture

CSericulture

DPoultry

Answer:

B. Aquaculture

Read Explanation:

The African catfish Clarias gariepinus was introduced for aquaculture purposes. The introduction was illegal and posed a threat to the indigenous catfishes in our rivers due to disease introduction, competition, and environmental modification.

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        പർവ്വത വനങ്ങളുമായി ബന്ധപ്പെട്ട് ശരിയായ പ്രസ്താവനകൾ ഏതൊക്കെയാണ് ?  

        1. ഉയരം കുടന്നതിന് അനുസരിച്ച് ഊഷ്മാവ് കുറയുന്നതിനാൽ നൈസർഗിക സസ്യജാലങ്ങളിൽ മാറ്റം ഉണ്ടാകുന്നുണ്ട്  
        2. പർവ്വത വന പ്രദേശങ്ങളിൽ 2500 മീറ്ററിന് മുകളിൽ പൈൻ മരങ്ങൾ കൂടുതലായി വളരുന്നു  
        3. പർവ്വത വന പ്രദേശങ്ങളിൽ 2225 മീറ്റർ മുതൽ 3048 മീറ്റർ വരെ മിതോഷ്ണ പുൽമേടുകൾ കുടുതലായി കാണപ്പെടുന്നു  
        4. പശ്ചിമഘട്ടം , വിന്ധ്യനിരകൾ , നീലഗിരി എന്നീ പ്രദേശങ്ങൾ തെക്കൻ പർവ്വതവന മേഖലയിൽ ഉൾപ്പെട്ടിരിക്കുന്നു