Biodiversity must be conserved as it plays an important role in many ecosystem services that nature provides. Explain any two services that nature provides .

Biodiversity plays a major role in providing many ecosystem services. Explain.

Which of the following is an ecosystem service provided by a natural ecosystem?

Give any two attributes which remain conserved in nature.

Name any four ecosystem services. Who gave the price tags on nature.s life support services? Which is the most important ecosystem service provider?

What are sacred groves? Mention any two examples. Mention its role in conserving biodiversity.

Given below are four statements (i-iv) regarding human blood circulatory system (i) Arteries are thick-walled and have narrow lumen as compared to veins (ii) Angina is acute chest pain when the blood circulation to the brain is reduced (iii) Persons with blood group AB can donate blood to any person with any blood group under ABO system (iv) Calcium ions play a very important role in blood clotting Which two of the above statements are correct ?

Given below are four statements (a-d) regarding human blood circulatory system (i) Arteries are thick-walled and have narrow lumen as compared to veins (ii) Angina is acute chest pain when the blood circulation to the brain is reduced (iii) Persons with blood group AB can donate blood to any person with any blood group under ABO system (iv) Calcium ions play a very important role in blood clotting Which two of the above statements are correct?

You are provided with magnesium ribbon and sulphur powder. Explain with the help of an activity that metal oxides are basic and non metal oxide are acidic in nature.