General Science

Investigating Space
Solar flares are associated with
sunspots
sun blasts
dark spots
sunlight
Author: rikazzz Comment
Atoms and Atom Model
Radioactive particles give off
waves
rays
energy
light
Author: rikazzz Comment
Simple Chemical Reactions
Natural gas is made up of compound
carbon
methane
ethene
ethane
Author: rikazzz Comment
Dispersion of Light
Sound is an example of a longitudinal wave because sound waves move forwards periodically displacing molecules in
the air
the space
a hollow place
the atmosphere
Author: rikazzz Comment
Investigating Space
Scientists says that there is no proof that astrology has been used for prediction of
human behavior
myths
future
life span
Author: rikazzz Comment
Atoms and Atom Model
Sodium ion has
positive charge
negative charge
no charge
may be positive or negative
Author: rikazzz Comment
Solutions
Acid rain is
corrosive
damage living things
damage buildings
all of above
Author: rikazzz Comment
Atoms and Atom Model
Every element has its own
valency
isotope
atom
state
Author: rikazzz Comment
Sound Waves
The melting of a metal with the help of ultrasounds is known as
ultra welding
ultrasonic welding
ultrasound welding
ultraviolet welding
Author: rikazzz Comment
Solutions
Alkaline has ph value above
10
14
4
7
Author: rikazzz Comment

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