ലിത്തോസെറിൽ, ഫോളിയോസ് ലൈക്കണുകൾ എന്നിവ എന്തിന്റെ വളർച്ചയ്ക്ക് അനുകൂലമായ സാഹചര്യങ്ങൾ ഉണ്ടാക്കുന്നു ?
Aക്രസ്റ്റോസ് ലൈക്കണുകൾ
Bപായലുകൾ
Cവാർഷിക പുല്ലുകൾ
Dവറ്റാത്ത പുല്ലുകൾ.
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Which soil pollutant alters soil pH and leaches heavy metals, damaging crops?
Which of the following statements accurately describe summer stratification in temperate lakes?
- Summer stratification is pronounced in temperate lakes due to the rapid mixing of water layers.
- Temperate lakes retain well-defined temperature layers that do not mix rapidly during summer.
- Tropical lakes exhibit pronounced summer stratification because their layers mix slowly.
- Summer stratification is rare in deep tropical lakes.
Identify the correct statements regarding Periphyton.
- Periphyton are free-swimming organisms found in the open water.
- These organisms are typically found attached to or clinging to plant stems, leaves, or other submerged objects.
- Sessile algae and associated animal groups are examples of Periphyton.
- Periphyton are exclusively microscopic organisms.
With reference to an initiative called ‘The Economics of Ecosystems and Biodiversity (TEEB)’ which of the following statements is/are correct ?
- It is an initiative hosted by UNEP/IMF and World Economic Forum
- It is a global initiative that focuses on drawing attention to the economic benefits of biodiversity.
- It presents an approach that can help decision makers recognize, demonstrate and capture the value of ecosystem and biodiversity.
ഊർജത്തിന്റെ പിരമിഡ് ഏതൊരു ആവാസവ്യവസ്ഥയ്ക്കും എപ്പോഴും നേരെയുള്ളതാണ്. ഈ സാഹചര്യം എന്ത് വസ്തുത സൂചിപ്പിക്കുന്നു ?