Q. 815.0( 1 Vote )

Which of the following increases the fertility of soil
(A) Lactobacillus bacteria

(B) Rhizobium bacteria

(C) Spirogyra algae

(D) Blue-green algae
A. A and B

B. B and C

C. A and D

D. B and D

Answer :

B and D as these two organisms are able to fix nitrogen gas from atmosphere to enrich soil with nitrogen compounds hence increasing fertility of soil

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
NCERT | Microorganisms: Friends and Foe Part 1NCERT | Microorganisms: Friends and Foe Part 1NCERT | Microorganisms: Friends and Foe Part 129 mins
Champ Quiz | MicroorganismsChamp Quiz | MicroorganismsChamp Quiz | Microorganisms40 mins
Genius Quiz | Microorganisms-Friends and FoeGenius Quiz | Microorganisms-Friends and FoeGenius Quiz | Microorganisms-Friends and Foe45 mins
Knowing MicrobesKnowing MicrobesKnowing Microbes48 mins
Know About the Tiny MonstersKnow About the Tiny MonstersKnow About the Tiny Monsters36 mins
Discovery and Types of MicroorganismsDiscovery and Types of MicroorganismsDiscovery and Types of Microorganisms42 mins
Smart Revision | Let's Revise MicrobesSmart Revision | Let's Revise MicrobesSmart Revision | Let's Revise Microbes53 mins
Quiz | Little MonstersQuiz | Little MonstersQuiz | Little Monsters46 mins
Lakhmir Singh | Microorganisms: Friends and Foe Part 2Lakhmir Singh | Microorganisms: Friends and Foe Part 2Lakhmir Singh | Microorganisms: Friends and Foe Part 233 mins
Lakhmir Singh | Microorganisms: Friends and Foe Part 1Lakhmir Singh | Microorganisms: Friends and Foe Part 1Lakhmir Singh | Microorganisms: Friends and Foe Part 142 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses