Answer:
The Fe-60, (iron-60) is formed during the gigantic scale explosion of the stars. However the amount of the isotope that can be located here on Earth after coming from distant stars is small
The Fe-60 is therefore, a source of evidence that the solar system formed from the after effect of stellar explosions.
The abundance of iron in the universe consists of 90% Fe-56, which has 26 protons along side 30 neutrons.
The Fe-60 however has 34 neutrons and the extra 4 neutrons given the Fe-60 its radioactive properties, such that it decays to form nickel-60 with an half life of 1.5 million years.
The nickel-60 found in meteorites are therefore, more or less the remnant of the radioactive decay of Fe-60 formed during the supernova explosion that likely formed our solar system
Explanation:
Natural selection is the process in which organisms who have the ability to survive more in the environment are favored than the other ones. In this type of evolution, the ones who do not adapt well with the environment gradually die off and the one with the best traits are left standing. Among the choices, choice B reflects this explanation.
The location and types of volcanoes are related to plate tectonics as well, so in that sense volcanoes also help us to understand about the tectonic history of a region because if there are volcanoes someplace even if they're not currently active we know that that must have been some sort of a plate uwu
Answer:
Seventy percent of Earth's land animals and plants live in forests, and many cannot survive the deforestation that destroys their homes. The trees of the rainforest that provide shelter for some species also provide the canopy that regulates the temperature, a necessity for many others.
Explanation
Deforestation is the permanent destruction of forests in order to make the land available for other uses. An estimated 18 million acres (7.3 million hectares) of forest, which is roughly the size of the country of Panama, are lost each year, according to the United Nations' Food and Agriculture Organization (FAO).
