Question
Which of the following is/are aquatic
weeds?Solution
Types of aquatic weeds : a. Floating weed i. Water velvet (Azola pinnata) ii. Water hyacinth (Echhornia crassipes) iii. Water lettuce (Pistia spp) iv. Water fern (Salvinia molesta) b. Rooted weed with floating leaves: i. Lotus (Nelumbo nucifera) ii. White water lily (Nymphaea alba) c. Submerged weeds: i. BGA (Anabaena spp.) ii. Pond weed (Potamogeton spp.) iii. Hydrilla d. Emergent weeds i. Typha spp ii. Ipomea spp
I. p²= ∛1331
II. 2q² - 21q + 55 = 0
I. 4x2 + 25x + 36 =0
II. 2y2 + 5y + 3 = 0
I. 2x2 - 15x + 25 = 0
II. 3y2 - 10y + 8 = 0
I. 15/(√x)+9/(√x)=11√x
II. (√y)/4 + (5√y)/12 = 1/(√y)
I. 49y2 + 35y + 6 = 0
II. 12x2 + 17 x + 6 = 0
I. 40 x² - 93 x + 54 = 0
II. 30 y² - 61 y + 30 = 0
I. 2x² - 12x + 16 = 0
II. 4y² - 8y - 12 = 0
I). p2 + 8p + 15 = 0
II). q2 + 9q + 20 = 0
I. 2x2 + 3x - 9 = 0
II. 3y2 - y - 10 = 0
I. x2 - 9x - 52 = 0
II. y2 - 16y + 63 = 0
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