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.
Answer:
C
Explanation:
Biodiversity is the difference and variation in a given area
Answer:
The correct statement is option C. Mitosis produces cells which are identical to parent cell, while meiosis produces cells that carry half of the genetic material of the parent cell.
Explanation:
Mitosis is a type of cell division in which a single cell is divided into two body parts. This cell division is present in body cells. The cells which are formed are identical to parents while meiosis cells are different from one another. In meiosis, the number of chromosome is half of the parent cell.
