Question

1. Define broadcasting?
2. Describe characteristics of viruses in brief?
3. What is atmospheric nitrogen fixation?​

Answer 1

$\huge\sf\underline{\pink{A}\blue{N}\purple{S}\green{W}\orange{E}\red{R}}$

1☞BROADCASTING-:Broadcasting is a method of seeding in agricultural field that involves scattering of seed in all directions unifromly.

2☞CHARACTERS OF VIRUS-:

• The various characteristics of viruses are:
• They are smaller and simpler than bacteria.
• They are ultramicroscopic and visible only under an electron microscope.
• They are considered to be on the boundary line of living and non-living things.
• They are obligate parasites and cannot live on their own.

3☞ATMOSPHERIC NITROGEN FIXATION-:

• Nitrogen fixation is the process by which atmospheric nitrogen is converted by either a natural or an industrial means to a form of nitrogen such as ammonia.

WHY IT IS IMPORTANT-:

• Nitrogen fixation is essential to life because fixed inorganic nitrogen compounds are required for the biosynthesis of all nitrogen-containing organic compounds, such as amino acids and proteins, nucleoside triphosphates and nucleic acids.

• As part of the nitrogen cycle, it is essential for agriculture and the manufacture of fertilizer. It is also, indirectly, relevant to the manufacture of all nitrogen chemical compounds, which includes some explosives, pharmaceuticals, and dyes.

Answer 2

Answer:

1. the transmission of programmers or information by radio or television

2.They are cellular ,that is they contain no cytoplasm or cellular organelles . they carry out no metabolism on their own and must replicate using the host cell's metabolic machinery in other words, viruses don't grow and divide. ...... the vast majority of viruses possess either DNA or RNA but not both

3.nitrogen fixation is the process by which atmospheric nitrogen is converted by either a natural or an industrial means to a form of nitrogen such as ammonia

I HOPE IT CAN HELP YOU

THANKYOU