The scientific study of insects is known as _______?
The scientific study of insects is known as _______?
A. Ichthyology
B. Entomology
C. Zoology
D. Botany
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The horizontal rows of the periodic table are called ______?
The horizontal rows of the periodic table are called ______?
A. Groups
B. Periods
C. Sets
D. MatricesHow many hearts an Octopus has?
How many hearts an Octopus has?A. 10
B. 8
C. 5
D. 3Octopuses have three hearts; a systemic heart that circulates blood round the body and two branchial hearts that pump it through each of the two gills.
Ozone layer protects the Earth from __________ radiations from the Sun.
Ozone layer protects the Earth from __________ radiations from the Sun.A. microwaves
B. infrared
C. X-rays
D. ultravioletStudy of fruit is called___________?
Study of fruit is called___________?A. Pomology
B. Plriculture
C. Sericulture
D. ApicultureChemical name of vinegar is _____________?
Chemical name of vinegar is _____________?
A. Sodium Nitrate
B. Dilute acetic acid
C. Chloride of lime
D. Calcium
E. None of theseAccording to quantum theory of light, photons are _______?
According to quantum theory of light, photons are _______?A. Waves
B. Particles
C. Energy packets
D. Electromagnetic