You have 32 million atoms of Uranium - 238. How many atoms will be left after 5 half-lives? (hint you have to divide it in half five times.)

The answer is d because i just took the test

The answer is b because c don't explain why the moths are on them and it isn't a because as we know only one species of moth does this

Is there any options, for this

We first assume that this gas is an ideal gas where it follows the ideal gas equation. the said equation is expressed as: pv = nrt. from this equation, we can predict the changes in the pressure, volume and temperature. if the volume and the temperature of this gas is doubled, then the pressure still stays the same.