Its is already a balanced equation so the option a.1 would fill in for the blank.
coil, oil and gas, cause pollution
Which damages the environment, also melts thw glaciers so animals such as polar bears lose their habitats and will come extinct at some point.... hope this helps
Honestly it would be the Exosphere<span> but since that's not one of the choices it would be the Thermosphere. </span>
Mutations can occur before, during, and after mitosis and meiosis. If a mutation occurs in cells that will make gametes by meiosis or during meiosis itself, it can be passed on to offspring and contribute to genetic variability of the population
It explodes
hope this helps lol