Answer:
d) sedimentary, metamorphic and igneous
They have longer periods of revolution.
Answer: A
Explanation: There is no need to conduct and experiment if you already know the answer
<span>invasive
Invasive species can threaten an ecosystem and the biodiversity of the organism that exist in the present environment when the invasive species increase rapidly in number.
</span><span>Exotic species are a threat to biodiversity because they alter the ecosystem of that area. They share food and habitat resulting in unbalanced ecosystem. Also, habitat destruction destroys the habitat of all the life forms in that area. </span>
The answer would be all of the above.