The answer is true (a) because if the life cycle suddenly doesn't work, this will have an impact on all other organsims
20. is Memphis Tennessee
21. is Knoxville Tennessee
Answer:
Weather patterns don’t tend to change with altitude
Explanation:
Highwall mining is often used when excavating an open-pit mine becomes too expensive. There are many advantages over underground mining, including the fact that it is both more cost-effective and involves less lead time.
it formed a moon for earth half of the earth came off and now it is considered our moon
