Answer:
An Ecosystem is a community of Living Organisms and Non living components of their Environment
OPTION A IS YOUR ANSWER!!!
<span>Continental plates pushing towards each other cause mountains to form on our planet Earth, true. </span>
Animals cause erosion in other ways too. When too many animals live in one place, they tend to eat and trample all the plants. Without the plants to protect the soil, it is much more likely to be eroded by wind and water. Animals cause weathering and erosion on rocky shorelines.
It cannot take in carbon dioxide for photosynthesis
I recall that Professor Kwang had observed amoebas that had cannibalized bacteria cells. The bacteria were slaughtering the amoebas, but somehow some survived. This particular group of amoebas contained bacteria that thrived inside it. Hence the name, endosymbiosis. However, this lucky group and it's offspring could not survive without bacteria.
