8. Calculate mode of following series using graph technique. Counter check the answer using formula. [4]
Marks 0-10 10-20 | 20-30 30-40 40-50
No. of students 28 46 54 42 30
OR
Calculate mode of the following series using the grouping method:
Size 40 44 48 52 56 6064 68 72 76
Frequency | 10 | 12 | 14 | 20 | 15 | 2018 | 10 8 4
Answers
Answer:
Electromeric effect refers to a molecular polarizability effect occurring by an intramolecular electron displacement characterized by the substitution of one electron pair for another within the same atomic octet of electrons. Filtration eliminates both large compounds and small, dangerous contaminants that cause diseases with a simple and quick filtration process.. Since filtration does not deplete all the mineral salts, water that has been filtered is considered healthier compared to water purified using other methods.The dispersal of seeds by wind is called as anemochory. For anemochory, the seeds should be lightweight and should have some morphological features as wings, hairs, etc.
Madar and cotton seeds do not show presence of wings.
As stated above, seeds should be lightweight as well as should possess some morphological features for anemochory. Madar and cotton seeds show a dense coating of hairs around their testa. It enables the seeds to float in air.
Therefore, the correct answer is option D.
The dispersal of seeds by wind is called as anemochory. For anemochory, the seeds should be lightweight and should have some morphological features as wings, hairs, etc.
Madar and cotton seeds do not show presence of wings.
As stated above, seeds should be lightweight as well as should possess some morphological features for anemochory. Madar and cotton seeds show a dense coating of hairs around their testa. It enables the seeds to float in air.
Therefore, the correct answer is option D.
REMEMBER THE TENSE NEVER CHANGES IN VOICE. THE LEAD IS TAKEN BY HIM IN SUMMER LUXURY.