ഒരു ആവാസവ്യവസ്ഥയിലെ ഉൽപാദകർ എന്നറിയപ്പെടുന്നവ ഏത് ?
Aസൂക്ഷ്മ ജീവികൾ
Bപ്രാണികൾ
Cകടുവകൾ
Dഹരിത സസ്യങ്ങൾ
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ഇനിപ്പറയുന്നവയിൽ ഏതാണ് ഏറ്റവും സ്ഥിരതയുള്ള ആവാസവ്യവസ്ഥ?
Consider the following statements regarding the importance of biodiversity for human wellbeing.
- Biodiversity is essential to human wellbeing.
- Biodiversity delivers services that sustain our economies and societies.
- Biodiversity's benefits are primarily limited to undeveloped countries.
What are artificial lakes created by humans called?
- Artificial lakes created by humans, both small and large, are referred to as Reservoirs or Impoundments.
- Impoundments are exclusively natural formations.
- Reservoirs are only built for water supply purposes.
What is the primary source of energy in almost all natural ecosystems?
The rate of biomass production by living beings in an ecosystem is called what?