The difference in elevation between the highest and lowest contour lines on a topographical map is called contour interval.
A contour interval is the vertical distance between the two contour lines (highest and lowest) in a topographical map. The contour interval is usually stated explicitly on the right-hand lower part in every map. 20 feet for a 1:24,000 map scale is the frequently used contour interval and different contour intervals is available for different maps.
Answer: yersinia pestis spreads from a bubo or from the lungs into the bloodstream. It can also happen if the Y. pestis bacteria get into the bloodstream after a person has direct contact with the meat or blood of an infected animal.
- Aspartame is an artificial sweetner that replaces sugar in a variety of food products.
- Glutamate is a known food additive monosodium glutamate (MSG) used as a flavor enhancer commonly found in American-style Chinese food, canned soups and vegetables, and processed meats.
The interactions can be harmful because they can poison the organisms and they can be helpful because they can help improve the organisms surroundings ex. food/ water supply.