Related Questions

কোনটির ঘনত্ব স্বাভাবিকের চেয়ে বেড়ে গেলে পত্ররন্ধ্র (stomata) বন্ধ হয়ে যায়?
A CO2
B O2
C K+
D H2O
Why do the plant closes stomata when it does NOT need carbon dioxide for photosynthesis?
A To store carbon dioxide
B To prevent water loss
C To release stored oxygen
D No option is correct
What is the shape of the two guard cells which enclose stomata?
A Oval
B Triangular
C Rectangular
D Kidney shaped
Stomata open at night in
A CAM plants
B C3 plants
C C4 plants
D Succulent plants
Identify the incorrect part of the sentences : A zebra's stripes helps this animal hide from its enemies.
A A
B helps
C hide from
D enemies
Which of the following crops helps in nitrogen fixation?
A Rice
B Wheat
C Beans
D Maize
A person who helps you break the law -
A Spy
B Collaborator
C Ally
D Accomplice
"Freeze Windows Panes" is an Excel command which helps in :
A Saving of freezing a document so that unauthorised changes couldn't be made
B Reviewing a worksheet by holding dome columns and sliding other
C Passward protection
D None of above
Lily hardly helps her mother with the house work nowadays, ----?
A is it
B does she
C isn't it
D doesn't she
Soothing music helps us to --- after a long day at work and therefore --- stress levels.
A relax-- enhances
B unwind -- diminishes
C settle down-- slow
D concentrate -- reduces

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