General Science for Class 7

Solutions
Strong ‘alkalis’ are
highly corrosive
medium corrosive
normal corrosive
less corrosive
Author: rikazzz Comment
Investigating Space
The mass of ‘Sirus A’ is
1.5 times of the Sun
1.8 times of the Sun
2.3 times of the Sun
2.5 times of the Sun
Author: rikazzz Comment
Reproduction in Plants
The seeds in the digestive system of animals are
absorbed in large intestine
digested later in small intestine
passed out through anus
stored in rectum
Author: rikazzz Comment
Heat Transfer
The movement of cool air from land to sea is known as
sea breeze
land breeze
forward breeze
reverse breeze
Author: rikazzz Comment
Energy Resources
Fossils fuel comes from the remains of organisms which lived
100 years ago
10 years ago
1 year ago
5 years ago
Author: rikazzz Comment
Respiration and Food Energy
The contraction of bronchi causes
flu
cough
fever
asthma
Author: rikazzz Comment
Atoms and Atom Model
All three isotopes of carbon are combined with oxygen to form
carbon monoxide
carbon dioxide
carbon trioxide
carbon tetroxide
Author: rikazzz Comment
Mixtures
Boiling point is a point at which liquid turns in to
solid
gas
molten shape
vapours
Author: rikazzz Comment
Sound Waves
Echoes are formed when sound
strikes a wall and reflects back
strikes a wall and is absorbed
hits the eardrum repeatedly
breaks
Author: rikazzz Comment
Electric Circuits and Currents
The 12V car battery would
kill you
electrocute you
give you a nasty shock
cause your body burst
Author: rikazzz Comment

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