Answer: Lithium—7 is more abundant with 94.1%
Explanation:Please see attachment for explanation
The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers, such as plants and algae, use energy from sunlight to make food energy by combining carbon dioxide and water to form organic matter. This process begins the flow of energy through almost all food webs.
Answer:
2
Explanation:
because it helps to balance the equation
Answer: sulfur, selenium, tellurium and polonium
Fact: The oxygen family is in group 16 of the perodic table.