Number of earthworms present in one acre of land where the top soil is eight inches thick

Number of earthworms present in one acre of land where the top soil is eight inches thick

A) 5000

B) 50000

C) 15000

D) 17000

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

Salim Ahmed Kawsar

Correct option is B) 50000

5 views Answered 2023-02-05 15:29

Related Questions

The square of one-sixth of the number of students in a class are studying in the library and the remaining eight students are playing in the ground. W

2 Answers 8 Views

I) Land forms originated from two giant lands namely Angara land and Gondwana land.

2 Answers 5 Views

The angle of depression of the top of the tower from the top of a building is `30^(@)` and angle of elevation of the top of the tower from the bottom

2 Answers 4 Views

Some animals have thick fur and thick skin to protect themselves from cold.

2 Answers 5 Views

Arteries have thick elastic walls but viens do not need thick wall.

2 Answers 4 Views

The time required to create one inch of top soil A) 100 – 1000 years

2 Answers 4 Views

In a senior secondary school,80 students play football or hockey.The number that play football is 5 more than twice the number that play hockey.If 15 students play both games and every student in the school plays at least one game,find (i)the number of students that play football (ii)the number of students that play football but not hockey (iii)the number of students that play hockey but not football.

2 Answers 16 Views

The top 8 inches of soil of one acre may contain ……….. of bacteria and fungi.

2 Answers 5 Views

The soil found in Northern Great Plains and coastal plains Red soil Alluvial soil Black soil Laterite soil

2 Answers 5 Views

A: During copulation, two earthworms mutually exchange sperms. R: the sperms are stored temporarily in the spermathecae.

2 Answers 6 Views

এক্সাম দিয়ে মেধা যাচাই করুন

Job Preparation (1125)

Admission (754)

এসএসসি (10)

এইচএসসি (5)