What are the options on it? I could help
Carbon footprint is the amount of CO2 a person emits, either directly or indirectly. For example, CO2 you exhale is part of your carbon footprint. But CO2 released in the process of making your clothes also counts toward your carbon footprint.
Answer: Gray whales are the common ancestor of the Blue and Humpback whales.
Ancestors of Blue whale include: Gray?
Answer:
The correct answer is - option b) 3Li .
Explanation:
Lithium that is occurring naturally have two isotopes that are stable one with an atomic mass of 7 and the other with an atomic mass of 6 both have the same atomic number.
In question 7(atomic mass) 3 (atomic number) is given and there is only two option have 3 atomic number with 3 b) 3.Li and d) 43Li. 4 atomic mass is not naturally occurring isotopes and as option b) has a no atomic mass so it would be the correct answer.
Thus, the correct answer is - option b) 3Li .
