A leaks during mining can cause spills that pollute the ocean
Answer:
hydrogen and helium couldn't form until the universe had cooled enough to allow their nuclei to capture electrons, about 380,000 years after the Big Bang. Within about 3 minutes after the Big Bang, conditions cooled enough for these protons and neutrons to form hydrogen nuclei.
Explanation:
<span>Heat and gases contracted within a nebula.</span>
Y chromosome because it has been passed down through generations, one man 60,000 years ago
Answer:
X=17.4444..&Y= - 1.2222..