The soil with the highest water-retaining capacity is
Clayey Soil
Stoney soil
Sandy soil
Loamy Soil
Correct answer is A
No explanation has been provided for this answer.
Which of the following is a nitrogen-fixing blue-green soil algae?
Rhizobium
Nitrosomonas
Clostridium
Anabaena
Correct answer is D
Anabaena is a genus of filamentous cyanobacteria that exist as plankton. They are known for nitrogen-fixing abilities, and they form symbiotic relationships with certain plants.
A severe and long dry season is a characteristic feature of
Sahel Savanna
Mangrove Swamps
Sudan Savanna
Guinea Savanna
Correct answer is A
No explanation has been provided for this answer.
The study of how and why population size change over time is
Population estimation
Population dynamics
Population ecology
Population Cycle
Correct answer is B
No explanation has been provided for this answer.
A characteristic feature of the tropical rainforest is that it
Contains trees with narrow leaves
Contains large number of plant species
Contains fewer number of plant species
Has a total annual rainfall of less than 50cm
Correct answer is B
No explanation has been provided for this answer.