Yes, at least, the colonists considered it so. It made it very difficult and expensive for all colonists to get goods.
The first one is C and the second one is B.
Hope this helps! :)
Answer:
Gases are released from volcanic eruptions.
Explanation:
The lithosphere can affect the atmosphere when tectonic plates move and cause an eruption where magma below spews up as lava above.
It is an act or agency by which an effect is produced.
