Which group of vertebrates comprises the highest number of endangered species?
A. Mammals
B. Fishes
C. Birds
D. Reptiles
Continue reading “Which group of vertebrates comprises the highest number of endangered species?”
A. Sardar Sarovar
B. Hirakud
C. Bhakranangal
D. Sutlej
Continue reading “The controversial dam across the river Narmada is __________?”
A. topographic
B. econtonal
C. biologic
D. edaphic
A. energy flow
B. environment
C. atmosphere
D. Ecosystem
Continue reading “The abiotic and biotic components constitute the structure of an __________?”
A. biological chain
B. ecosystem
C. biological magnification
D. energy flow
A. At the time when the air temperature is highest
B. In the middle of the afternoon
C. At the time when the air temperature is lowest
D. Just before sunrise
E. About midnight
A. lithosphere
B. hydrosphere
C. atmosphere
D. biosphere
A. acidic
B. toxins
C. bacteria
D. virus
Continue reading “The algal booin often releases __________ in water.”
A. Biomagnification
B. Bioaccumulation
C. Biodegradation
D. Bioremediation
A. Astronomical winter begins in the Northern Hemisphere
B. The noon sun is overhead at 23.5o S latitude
C. At middle latitudes in the Northern Hemisphere, this marks the longest night of the year
D. All of the above
Continue reading “During the winter solstice in the Northern Hemisphere __________?”