Chapter 23: Sound Waves - Science Mcqs for Grade 7


Q.  To avoid noise from the surroundings

a. soft curtains should be used
b. hard curtains should be used
c. glass windows should be used
d. vacuum windows should be used


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  An animal that can hear sounds with low frequency than human ear is
Category: Science Mcqs,   Published by: teswesm
MCQs:  In air, change in pressure produces
Category: Science Mcqs,   Published by: teswesm
MCQs:  Processes that do not require energy for the movement of particles are
Category: Science Mcqs,   Published by: teswesm
MCQs:  The percentage of transpiration by stomata is
Category: Science Mcqs,   Published by: teswesm
MCQs:  The contents that a plant uses to make food, are
Category: Science Mcqs,   Published by: teswesm
MCQs:  The rate of transpiration slows down when plant
Category: Science Mcqs,   Published by: teswesm
MCQs:  The process in which food substances are moved to rest of the plant by 'phloem' is known as
Category: Science Mcqs,   Published by: teswesm
MCQs:  Water evaporates from tiny pores on the lower part of leaf. These pores are known as
Category: Science Mcqs,   Published by: teswesm
MCQs:  'Phloem' is a vessel in the plants which carries
Category: Science Mcqs,   Published by: teswesm
MCQs:  In roots, vascular bundles are
Category: Science Mcqs,   Published by: teswesm
MCQs:  Carbon dioxide and oxygen move in the plants by
Category: Science Mcqs,   Published by: teswesm
MCQs:  Most of the mineral salts in soil enter the roots by the process of
Category: Science Mcqs,   Published by: teswesm
MCQs:  Phloem tissue also contains
Category: Science Mcqs,   Published by: teswesm
MCQs:  The food transported in the form of a sugar is known as
Category: Science Mcqs,   Published by: teswesm
MCQs:  Tiny holes in cell membrane are used
Category: Science Mcqs,   Published by: teswesm
MCQs:  The process by which food in leaves is prepared, is
Category: Science Mcqs,   Published by: teswesm
MCQs:  The contents in the root hair make
Category: Science Mcqs,   Published by: teswesm
MCQs:  The process in which the particles move from lower concentration to higher concentration is known as
Category: Science Mcqs,   Published by: teswesm
MCQs:  When the rate of respiration is slower than the rate of photosynthesis, the carbon dioxide gas is
Category: Science Mcqs,   Published by: teswesm
MCQs:  The process in which gases move in and out of a plant is called
Category: Science Mcqs,   Published by: teswesm