There is no chart or problem or picture to work out here but a tenth would look like this 12.<u>3</u>9 .
Answer:
150 million years old
Explanation:
If we have an isotope that has a half-life of 50 million years, we need just need to divide the numbers in order to get to one eight of the full number, than multiply it by 50 million in order to get the result.
If one half is 50 million years, than dividing one more half, which will gives one fourth of the total, will brings us to 100 million. Dividing the one fourth by two will leads to the one eight of the full number, and adding 50 million more years, we get 150 million years. So the rock in question has 150 million years of age.
Answer:
C. flows briefly after a period of rainfall
Explanation:
A wadi is dry riverbed that only contains water seasonally. It usually found in arid regions.
- Wadi derived from the Arabic word Wad which means valley.
- For most part of the year, a wadi is usually dry.
- During a brief stint of rainfall, the bed blossoms with water.
- The bed is found in a valley in most arid places.
- They can hold rain water for a short time before the bed dries up.
Qualities of the Population, Populace Size and Density, Populace Scattering or Spatial Dispersion, and Age Structure are four population characteristics.
The term "population" usually refers to the total number of people living in a certain area, such as a city or town, region, nation, continent, or the entire world. Governments frequently use censuses, a procedure for gathering, analyzing, compiling, and releasing statistics regarding a population, to determine the size of the resident people within their jurisdiction. Population refers to a group of people who share some established characteristics, such as location, race, ethnicity, nationality, or religion, in sociology and population geography. The social science of demography involves the statistical analysis of populations. Any whole group that shares at least one trait is referred to be a population. People do not make up all populations. Populations can include, but are not limited to, individuals, animals, organizations, structures, buildings, cars, farms, objects, or occasions.
Learn more about Population here
brainly.com/question/25630111
#SPJ4
