What is common to Pantoeaagglomerans, Microbacteriumlaevaniformans and Pseudomonas putida?
1. They are phosphate solubilising bacteria
2. They are all denitrifiers
3. They are genetically modified to fix atmospheric nitrogen
4. They are source of antibiotics effective against MRSA

Subtopic:  Mineral Cycling & Ecosystem Services (OLD NCERT) |

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Which one of the following is not a gaseous biogeochemical cycle in ecosystem ?  
1. Sulphur cycle
2. Phosphorus cycle
3. Nitrogen cycle
4. Carbon cycle

Subtopic:  Mineral Cycling & Ecosystem Services (OLD NCERT) |
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Given below is a simplified model of phosphorus cycling in a terrestrial ecosystem with four blanks (A-D). Identify the blanks.                                                            

Options :

A

B

C

D

1.

Rock minerals

Detritus

Litter fall

Producers

2.

Litter

Producers

Rock minerals 

Detritus

3.

Detritus 

Rock minerals

Producer

Litter fall

4.

Producers

Litter fall

Rock minerals 

Detritus

Subtopic:  Mineral Cycling & Ecosystem Services (OLD NCERT) |
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Natural reservoir of phosphorus is :    
1. Animal bones
2. Rock
3. Fossils
4.Sea water

Subtopic:  Mineral Cycling & Ecosystem Services (OLD NCERT) |
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