Answer:
1
Explanation:
To get the coefficient of the diatomic oxygen, we will need to balance the chemical reaction.
Checking the chemical equation, we can see that the number of nitrogen atoms on both sides are balanced.
We have 4 nitrogen atom on the left hand side and 4 nitrogen atoms on the right hand side.
Now for the oxygen, we have 10 on the left hand side and 8 + 2 which equals 10 too on the
right hand side
This shows that the diatomic oxygen has a coefficient of 1 on the right hand side of the balanced equation since 1 * 2 gives the 2 oxygen atoms needed to complete the balanced chemical reaction
Answer: Herding animals.
In the zones of the semi-arid climate, there are huge areas of savannahs and steppes. Annual rainfall varies from 250 to 760 mm. This moisture is enough for grassy vegetation, but not enough for full forests. Severe droughts in these areas are a fairly common phenomenon. In open level spaces with rare trees prevail strong winds. The necessary conditions of existence of grassy vegetation of this zone are grazing of large herd animals which liberate vegetative communities from the accumulated straw and destroy bushes. The bulk of the plant grass mass is concentrated underground. The powerful root system allows it to accumulate nutrients and moisture. Herding animals stimulate the regeneration of vegetation.
I believe it would be B due to the fact that certain time periods being and end at certain times
