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General Science
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Biological Sciences
50
Modern Materials
21
Atomic Structure
87
Energy Resources
43
Elements and Substances
76
Plant Photosynthesis and Respiration
52
Space and Solar System
230
General Science for Class 6
1155
General Science for Class 7
2197
General Science for Class 8
0
Basics of Electricity
28
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Basics of Electricity
The light blocked by the ozone layer is known as?
UVA
UVB
UVC
UVD
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Basics of Electricity
What is NOT a benefit of LED treatments?
Shrink melanoma
Improve collagen content
Reduce acne
Increase skin circulation
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Basics of Electricity
35% of natural sunlight is made up of:
Therapeutic light
UV light
Visible light
Infrared light
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Electric Circuits and Currents
Some appliances cost more because they need more
power
space
energy
electricity
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Sound Waves
The more dense the liquid, the
more slow the speed of sound
more fast the speed of sound
more distance covered by the sound
less distance covered by the sound
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Sound Waves
Loud noise can
damage our ears
make us ill
disturb our sleep
interrupt conversation
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Importance of Water
Hot water is bad for fish eggs to
lay
mature
hatch
grow
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Dispersion of Light
Sunlight travels through a complete empty space known as
medium
exosphere
troposphere
vacuum
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Dispersion of Light
Each pair of objects is identified by
refractive index
nature
type
shape
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Feeding Relationships and Environment
The main source of energy for a food chain is
Producers
Soil
Fertilizers
Sun
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