Answer:
Radiometric dating methods
Explanation:
Absolute dating is the process of determining an age on a chronological or specified time scale in which events occurred in archaeology and geology. Absolute dating can be determined by using properties of the atoms that make up materials.
The most common method of absolute dating uses by geologists is radiometric dating methods which is based on the natural radioactive decay of certain elements such as potassium and carbon found in the rocks. By comparing the ratio of parent isotope with a known half-life to daughter product in the rock, the age of the rock can be determined.
The carbon-14 isotope is used in radiocarbon dating, but is only useful for measuring recently formed rocks in the geologic past. The decay of Potassium-40 isotope known as potassium-argon (K-Ar) method allows dating of materials that up to 1,000 billion years old.
Biological augmentation is a process that uses organisms to add essential materials to a degraded ecosystem. It involves the addition of archaea, or bacteria cultures required to speed up the rate of degradation of a contaminant, this is supplementation application of non-toxic, natural, beneficial microbes, enzymes and minerals to enhance the rate of degradation.
The genes in a population give forth the genetic variability across a population (genotypes). In addition, occasional mutations of these genes in a population increase this genetic variability. Hovever, natural selection only favours reproduction of individuals with genes that are favourable in the environment/habitat. Therefore, natural selection has no foresight but is rather pegged on being an ‘opportunistic’ process.
Answer:
A pendulum clock is a mechanical device. It relies on a pendulum swinging at a steady pace, with energy to the pendulum provided by a spring. ... A quartz clock relies on the exactly repeating vibration of a thin sliver of quartz. This vibration creates an electrical current that controls the electronic display.
Explanation:
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Answer:
Option 4. Autonomy vs. shame and doubt is correct answer.
Explanation:
Erik Erickson presented theory of personality development which is very popular and acceptable. He divided his theory into 8 sages each having 2 components. I have attached an info graph explaining clearly each stage.
