سؤال قراءة ستيب محلول — المفردات في السياق (تدريب 7230)

The surface of the Earth can be considered as four diststinct regions and because the planet is spherical each of them is also a sphere. The rocks forming the solid surface comprise the lithosphere, the oceans, lakes, rivers, and icecaps from the hydrosphere, the air conststitutes the atmosphere, and the biosphere contains the entire community of living organisms. The word “distinct” in the passage is closest in meaning to…………