Biogas is considered an excellent fuel because it is odourless, burns without smoke and does not produce any ash. Moreover, its calorific value is quite high.
Biogas is considered an excellent fuel because it is odourless, burns without smoke and does not produce any ash. Moreover, its calorific value is quite high.
(a) Arteries possess thick elastic wall without valves inside, blood flows under high pressure and carry blood away from the heart to different parts of the body.
(a) Arteries possess thick elastic wall without valves inside, blood flows under high pressure and carry blood away from the heart to different parts of the body.
A uniform magnetic field exists in the plane of paper pointing from left to right. In the field an electron and proton exprience
(a) forces both pointing into the plane of paper.
(a) forces both pointing into the plane of paper.
See lessA virtual, erect and magnified image of an object is to be produced with a concave mirror of focal length 12 cm. Object may be placed at a distance of
(a) 10 cm from the mirror.
(a) 10 cm from the mirror.
See lessIn comparing the two ecosystems A and B, it is observed that A has only first and second order consumers, while b has third, fourth and fifth order consumers. Which has two would be more stable ?
Ecosystem A will be more stable because it has a fewer number of trophic levels.
Ecosystem A will be more stable because it has a fewer number of trophic levels.
See lessThe electronic configuration of an element is 2, 8, 4. Name the element and write its symbol.
Silicon, Si
Silicon, Si
See lessWhy is biogas considered an excellent fuel?
Biogas is considered an excellent fuel because it is odourless, burns without smoke and does not produce any ash. Moreover, its calorific value is quite high.
Biogas is considered an excellent fuel because it is odourless, burns without smoke and does not produce any ash. Moreover, its calorific value is quite high.
See lessWhat is the function of a galvanometer in a current ?
A galvanometer is an instrument which can detect the presence of current in a circuit.
A galvanometer is an instrument which can detect the presence of current in a circuit.
See lessIn a following groups of materials which groups contains only non-biodegradable items?
(d) Plastic,bakelite and DDT
(d) Plastic,bakelite and DDT
See lesswhich of the following statements is true about arteries ?
(a) Arteries possess thick elastic wall without valves inside, blood flows under high pressure and carry blood away from the heart to different parts of the body.
(a) Arteries possess thick elastic wall without valves inside, blood flows under high pressure and carry blood away from the heart to different parts of the body.
See lessNaOH on addind blue litmus solution and methyl orange indicator changes colour respectively to
(a) blue, yellow
(a) blue, yellow
See lessIn a gobar gas plant bio-gas is produced from slurry of bio-mass by
(c) anaerobic decomposition.
(c) anaerobic decomposition.
See less