The right option is a. contour interval
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.
In active transport, materials move from an area of high concentration to an area of lower concentration (goes down the concentration gradient) and it requires or uses energy in the form of ATP (adenosine triphosphate)
It shows the evolution of certain species through the bone structures of the fossils.
1. Treatable by a medical professional
2. Requires a medical diagnosis
<span>3. Lab tests or imaging always required
Thank You,
Helpingothers
</span>
A Kingdom. There's an animal and a plant Kingdom.
