Question
Which of the following scientist proved that air and
water were the primary sources of C, H, and O in plant tissue?ÂSolution
French agriculturist J.B. Boussingault (1834) proved that air and water were the primary sources of C, H, and O in plant tissue. He was a French chemist and agronomist who made significant contributions to agricultural science, including the understanding of plant nutrition and the role of elements such as nitrogen in plant growth. His experiments in the mid-19th century helped to debunk the then-prevailing theory that plants obtained carbon from the soil, showing instead that they primarily derive it from carbon dioxide in the atmosphere.
Statements:
Only a few balloons are cakes.
All cakes are knife.
Some knife are ribbons.
Only a few ribbons are candles.
...Statements:
Only a few Bottle is Cold
All Cold are Weather
Some Water are Weather
Conclusions:
I. All Bottle be...
Statements:
Some bangles are necklaces.
No necklace is a ring.
Only a few rings are anklets.
All anklets are earrings.
<...How many children does Mr. Raman has?
I. Mr. Raman has eight sons and each has one sister.
II. Number of sons of Mr. Raman is eight times ...
Statements :
Only a few Harpic is Lizol.
Only a few Lizol is Detergent.
No Harpic is Pesticide.
Conclusion :
I. Ev...
Statements:
Only today is tomorrow.
All yesterday is night.
No today is night.
Mostly today is day.
Conclusions:
...Statements :All blues are whites.
Some whites are reds.
All yellows are reds.
Conclusions :I. Some reds are whites.
II. Some yellows are whites.
Statements:
cups + sets.
sets + fours.
fours - claws.
claws + traps.
Conclusions:
I. claws + sets.
II. ...
Statements:
Each hand is pump.
Every pump is tap.
Some hand are water.
Conclusions:
I. Some pump are water.
II. No water is tap.
III. Some tap are hand.
Statements:
No Teacher is Doctor.
Only a few Doctor is Student.
No Student is Police
Conclusions:
I)Â Â No Stud...
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