Answer:
Air particles are a mixture of solids and liquids that are microscopically tiny and suspended by air currents. It can stay in the atmosphere for a few hours to a month or two. Their constituents can be various harmful substances such as heavy metals - lead, nickel, arsenic, cadmium or polycyclic aromatic hydrocarbons
Explanation:
Air particles, nitrogen dioxide and ground-level ozone are now considered to be the three most polluting substances in human health. Exposure during peak concentration and long-term exposure to these pollutants can cause damage from respiratory distress to premature death.
I’m pretty sure this is right
The thermosphere is the layer in the Earths atmosphere directly above the mesosphere and below the exosphere. Within the layer of atmosphere, ultraviolet radiation causes photoionization of molecules creating ions the thermosphere continues the larger part of the Ionosphere.
C is the one that directly helps code for a protein.
Answer:
d
Explanation:
that is an example of a point mutation. A point mutation is a mutation that causes only one nucleotide to change and in the example adenine changes to thymine
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