Nitrogen is fixed or combined, in nature as nitric oxide by lightning and ultraviolet rays, but more significant amounts of nitrogen are fixed as ammonia, nitrites, and nitrates by soil microorganisms.
The presence of hydrogen bond is one factor that explains the fact that ice floats over water because it has less density.
Due to this, rivers and lakes freeze from the surface whereas it is in liquid state at the bottom which allows the sea animals to survive even in colder temperatures.
Water makes up at least 70% of earth and 65% of our bodies and this property of water is essential for our lives as it maintains the survival.
Answer:
Chromosomes
Explanation:
Chromosomes contains gentic information and is called DNA.
The Robinson projection map is considered very useful because most distances, sizes, and shapes are accurate.
Answer:
im supposed to do my school... but im trying to help you...
Explanation:
::DDD
mark me brainliest :DDD
* tripple chin :))
* double chin
