A. Biological system
B. Biogeochemical system
C. Physicochemical system
D. Bioecological system
✅ The correct answer is option A.
After which one of the following tribes of India, has a large continent of ancient geological history of the world been named?
A. Santhals
B. Bhils
C. Marias
D. Gonds
✅ The correct answer is option D.
The colour of loamy soil is –
A. Greenish brown
B. Bluish green
C. Yellowish brown
D. Blackish brown
✅ The correct answer is option D.
What is the interval between a high tide and neaptide at a given place?
A. 12 hours
B. 12 hours 26 minutes
C. 15 hours 30 minutes
D. 24 hours
✅ The correct answer is option B.
Seismic sea waves which approach the coasts at greater force arc known as –
A. Tides
B. Tsunami
C. Current
D. Cyclone
✅ The correct answer is option B.
Which of the following is a cold ocean current?
A. Humboldt current
B. Brazil current
C. Oyashio current
D. Canary current
✅ The correct answer is option A.
In sea, plants are restricted up to the depth of –
A. 20 m
B. 200 m
C. 1000 m
D. 2000 m
✅ The correct answer is option B.
El Nino occurs over –
A. Atlantic Ocean
B. Indian Ocean
C. Pacific Ocean
D. Mediterranean Sea
✅ The correct answer is option C.
Convectional Rainfall occurs in:
A. Equatorial region
B. Temperate region
C. Tropical region
D. Polar region
✅ The correct answer is option A.
Land and sea-breezes occur due to :
A. Conduction
B. Convection
C. Radiation
D. Tides
✅ The correct answer is option B.