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.
<span>B. A secondary consumer that obtains its energy from the consumption of animals.
The red-tailed hawk is a secondary consumer because it feeds itself on primary consumers (those that eat plants, herbivores). Secondary consumers, by definition, </span><span>obtain their energy from eating other animals. Secondary consumers are also usually the ones that stand on the second and above rows of a food chain, being the plants at the bottom and the primary consumers just above the plants.</span>
It is either 1 or 2 but I think it is temp(2)
Answer:
True
Explanation:
Every cell has got different sets of genes. Although they do have the same exact DNA. The set of genes expressed in a cell determines the set of proteins and functional RNAs it contains, giving it its unique properties.
