A garden has a higher level of oxygen compared to a city road. A garden has plants and trees. Plants produce oxygen and sugars from carbon dioxide. A city road is composed of industrial buildings, vehicles, humans, and animals. They consume oxygen that is why the oxygen content is lesser on a city road.
A primary air pollutant is directly from the source and secondary pollutants are omitted from two or more different primary pollutants interact with each other in the atmosphere.
EX of primary: carbon monoxide, nitrogen oxide, sulfur oxid
EX of secondary: NO2 acid rain
Answer : An atom with 7 protons, 6 neutrons,
and 7 electrons has an atomic mass of 13 amu.
Explanation:
As we are give that,
Number of protons
7
Number of electrons =7
Number of neutrons =6
As we know that,
Atomic number =Number of protons = Number
of electrons =7
Atomic mass = Number of neutrons + Atomic
number
Atomic mass = 6 + 7 = 13 amu
Therefore, the atomic mass is, 13 amu
Answer:
B. A biodiverse ecosystem harbors many interactions, thus a disturbance may impair some interactions, but not all.
Explanation:
Biodiversity is the variation of life forms in an environment. This is as a result of available nutrient and energy to support the various life forms.
- The relationship between biodiversity and rebound from disturbance is such that a biodiverse ecosystem is able to resist any change.
- The disturbance might affect proportion of the populace. But on the long organisms can survived and be propagated again.
