Natural silk contains two proteins sericin and fibroin. Both of these proteins contain nitrogen. It is so important for the growth and development of plants and animals.
CG PMT-2011
Microbes in Human Welfare
260038
A gas produced by paddy fields and connected with global warming is
1 $\mathrm{CO}_2$
2 Chlorine
3 $\mathrm{H}_2 \mathrm{~S}$
4 Methane
Explanation:
Methane is the second most important green house gas after $\mathrm{CO}_2$, is emitted from flooded paddy fields as methanogens in the flooded soil produce it in large quantities.
J and K CET-2008
Microbes in Human Welfare
260039
Some blue-green algae can be used as biofertilizer because:
1 they are photosynthetic
2 they have mucilage
3 they grow everywhere
4 they can fix nitrogen
Explanation:
Some blue-green algae such as Anabaena, Nostoc, Oscillatoria are used as bi biofertilizer because they can fix nitrogen. Nitrogen is an essential nutrient of plant growth, the blue green algae, convert the atmospheric nitrogen into a form that can be used by plant. This is done by specialized cells called heterocyst's. .
Karnataka CET-2002
Microbes in Human Welfare
260041
Which one is incorrect statement?
1 Green manures are added to the soil
2 Fertilizers cause soil and water pollution
3 Biofertilizers improve soil fertility
4 Berseem is an ideal biofertilizer
Explanation:
Berseem, a leguminous fodder crop, is used as green manure in irrigated areas as it improve the fertility of soil.
Natural silk contains two proteins sericin and fibroin. Both of these proteins contain nitrogen. It is so important for the growth and development of plants and animals.
CG PMT-2011
Microbes in Human Welfare
260038
A gas produced by paddy fields and connected with global warming is
1 $\mathrm{CO}_2$
2 Chlorine
3 $\mathrm{H}_2 \mathrm{~S}$
4 Methane
Explanation:
Methane is the second most important green house gas after $\mathrm{CO}_2$, is emitted from flooded paddy fields as methanogens in the flooded soil produce it in large quantities.
J and K CET-2008
Microbes in Human Welfare
260039
Some blue-green algae can be used as biofertilizer because:
1 they are photosynthetic
2 they have mucilage
3 they grow everywhere
4 they can fix nitrogen
Explanation:
Some blue-green algae such as Anabaena, Nostoc, Oscillatoria are used as bi biofertilizer because they can fix nitrogen. Nitrogen is an essential nutrient of plant growth, the blue green algae, convert the atmospheric nitrogen into a form that can be used by plant. This is done by specialized cells called heterocyst's. .
Karnataka CET-2002
Microbes in Human Welfare
260041
Which one is incorrect statement?
1 Green manures are added to the soil
2 Fertilizers cause soil and water pollution
3 Biofertilizers improve soil fertility
4 Berseem is an ideal biofertilizer
Explanation:
Berseem, a leguminous fodder crop, is used as green manure in irrigated areas as it improve the fertility of soil.
Natural silk contains two proteins sericin and fibroin. Both of these proteins contain nitrogen. It is so important for the growth and development of plants and animals.
CG PMT-2011
Microbes in Human Welfare
260038
A gas produced by paddy fields and connected with global warming is
1 $\mathrm{CO}_2$
2 Chlorine
3 $\mathrm{H}_2 \mathrm{~S}$
4 Methane
Explanation:
Methane is the second most important green house gas after $\mathrm{CO}_2$, is emitted from flooded paddy fields as methanogens in the flooded soil produce it in large quantities.
J and K CET-2008
Microbes in Human Welfare
260039
Some blue-green algae can be used as biofertilizer because:
1 they are photosynthetic
2 they have mucilage
3 they grow everywhere
4 they can fix nitrogen
Explanation:
Some blue-green algae such as Anabaena, Nostoc, Oscillatoria are used as bi biofertilizer because they can fix nitrogen. Nitrogen is an essential nutrient of plant growth, the blue green algae, convert the atmospheric nitrogen into a form that can be used by plant. This is done by specialized cells called heterocyst's. .
Karnataka CET-2002
Microbes in Human Welfare
260041
Which one is incorrect statement?
1 Green manures are added to the soil
2 Fertilizers cause soil and water pollution
3 Biofertilizers improve soil fertility
4 Berseem is an ideal biofertilizer
Explanation:
Berseem, a leguminous fodder crop, is used as green manure in irrigated areas as it improve the fertility of soil.
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Microbes in Human Welfare
260076
Natural silk contains
1 Nitrogen
2 Potassium
3 Magnesium
4 Phosphorus
Explanation:
Natural silk contains two proteins sericin and fibroin. Both of these proteins contain nitrogen. It is so important for the growth and development of plants and animals.
CG PMT-2011
Microbes in Human Welfare
260038
A gas produced by paddy fields and connected with global warming is
1 $\mathrm{CO}_2$
2 Chlorine
3 $\mathrm{H}_2 \mathrm{~S}$
4 Methane
Explanation:
Methane is the second most important green house gas after $\mathrm{CO}_2$, is emitted from flooded paddy fields as methanogens in the flooded soil produce it in large quantities.
J and K CET-2008
Microbes in Human Welfare
260039
Some blue-green algae can be used as biofertilizer because:
1 they are photosynthetic
2 they have mucilage
3 they grow everywhere
4 they can fix nitrogen
Explanation:
Some blue-green algae such as Anabaena, Nostoc, Oscillatoria are used as bi biofertilizer because they can fix nitrogen. Nitrogen is an essential nutrient of plant growth, the blue green algae, convert the atmospheric nitrogen into a form that can be used by plant. This is done by specialized cells called heterocyst's. .
Karnataka CET-2002
Microbes in Human Welfare
260041
Which one is incorrect statement?
1 Green manures are added to the soil
2 Fertilizers cause soil and water pollution
3 Biofertilizers improve soil fertility
4 Berseem is an ideal biofertilizer
Explanation:
Berseem, a leguminous fodder crop, is used as green manure in irrigated areas as it improve the fertility of soil.
