Explain how are Fe-60 and Ni-60 are related to the formation of our solar system

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:

the answers are a and c

it is a limiting nutrient limited by a single nutrient in the ecosystem, & the single goes very slow.