Question
Which of the following statements are correct about weed
shift? Statement I - Susceptible species are killed by the weed management practices while resistant ones grow, reproduce, and increase in the community, resulting in a weed shift. Statement II - A weed shift means that the habitat of a weed species is changed due to change in environmental conditions.Solution
Weed shift refers to change in composition or relative frequencies of weeds in a weed population in response to natural or human-made environmental changes in an agricultural system is known as weed shift.
The lateral surface area of a cube is 400 cm2. The length of a cuboid is 50% more than the side of the cube. The breadth of the cuboid is 12 ...
The curved surface area of the sphere is 154 cm2 . Find the volume of the sphere (rounded off to one digit after decimal).
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The ratio of the diagonals of a rhombus is 5:6, and the difference between their lengths is 7 cm. Find the area of the rhombus.
A rectangular plot has an area of 490 m². If the length of the rectangular plot is 24.5 m. Find the perimeter of the rectangular plot.
A boy is supposed to distribute Rs.2400 among his three friends P, Q and R in the ratio of 4:3:5 respectively, but mistakenly he distributed in the rati...
Angle bisectors of Q and R meet at point S, inside the triangle PQR. If angle QSR = 132˚ , then the measure of angle P is:
If the curved surface area and the radius of a cylinder are 660 cm2 and 14 cm, respectively, then find the volume (in cm3) of the ...
A prism and a pyramid have the same base and the same height. Find the ratio of the volumes of the prism and the pyramid.
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