কাজ
অ্যাক্টিনিক কেরাটোসিস (একে), সৌম্য ত্বকের ক্ষত, হাইপোক্সেমিয়া, ওয়ার্টস চিকিৎসায় নির্দেশিত হয়।
0 Answers
On which planet did NASA find biologically usefu nitrogen in March 2015 ?
On 24th March 2015 NASA found biological usefully nitrogen on Mars planet which is also know as the Red planet.
1 Answers 1 views
Oil and fat containing food items are flushed with nitrogen. Why?
Nitrogen is an inert gas and does not easily react with these substances. On the other hand, oxygen reacts with food substances and makes them rancid. Thus, bags used in...
1 Answers 1 views
Choose the forms in which most plants absorb nitrogen
(b) (ii) and (iii)
1 Answers 1 views
Explain nitrogen cycle.
The nitrogen cycle is the biogeochemical cycle by which nitrogen is converted into various chemical forms as it circulates among the atmosphere, terrestrial, and marine ecosystems. Important processes in the nitrogen cycle include fixation, ammonification, nitrification, and denitrification. The...
1 Answers 1 views
What are the conditions necessary for fixation of atmospheric nitrogen by Rhizobium. What is their role in N2 -fixation?
Rhizobium is a symbiotic bacteria present in the root nodules of leguminous plants. The basic requirements for Rhizobium to carry out nitrogen fixation are as follows: (a) Presence of the enzyme nitrogenase (b)...
1 Answers 1 views
How would you react to the statement that the electronegativity of N on Pauling scale is 3.0 in all the nitrogen compounds?
Electronegativity of an element is a variable property. It is different in different compounds. Hence, the statement which says that the electronegativity of N on Pauling scale is 3.0 in...
1 Answers 1 views
Which one of the following nutrients is not available in fertilizers? (a) Nitrogen (b) Phosphorus (c) Iron (d) Potassium
Correct answer is (c) Iron
1 Answers 1 views
When we breathe in air, nitrogen also goes inside along with oxygen. What is the fate of this nitrogen?
Answer is (b) It comes out with the CO2 during exhalation
1 Answers 1 views