Relative dating arranges<span> geological events, the rocks they leave behind, in a sequence. </span>
Front, it is the boundary between two different air masses.
Answer:
epidemic: a disease that is constantly present across the world.
Explanation:
<em>An epidemic is a sudden outbreak of a disease that spreads over a large area within a short period.</em>
<em>Endemic disease is a disease that is found regularly within an area at every point in time.</em>
<em>Pandemic disease is a disease that is prevalent over the whole world within a short period.</em>
<em>Incidence is the number of newly reported cases of a disease.</em>
From the definition of each of the term. epidemic is the only one defined incorrectly of all the options.
Drugs and other chemicals are examples of how environmental factors affect gene expression. These drugs can either 'activate' or 'inhibit' the expression of genes that you have. For example, taking drugs while being pregnant affects the genetic makeup of the baby inside you.
