№1 Choose the best options to fill in the gaps in the text: Clouds…

№1 Choose the best options to fill in the gaps in the text: Clouds play a powerful (1) ____in warming and cooling our planet. Even a one-percent change in cloud can have dramatic (2) ____on global temperature. On the one (3) ____, clouds spread out like global umbrellas, blocking the sun's heat energy and reflecting much of it (4) ____into space. That cools the planet. But clouds can also act like giant blankets (5) ____trap heat radiating from Earth. This (6) ____to keep the planet warm and suitable for life. All life processes on Earth depend on a balance (7) ____this warming and cooling. If the balance shifts, the effects (8) ____be disastrous. Colder winters or hotter summers could threaten entire species of plants and animals, and force whole populations-humans included-to move to different latitudes. Scientists are now studying clouds in an attempt to forecast (9) ____climatic changes. They hope to (10) ____answers to many questions._______________________________________________________________|__№__|_________a__________|_________b_________|________c_________|| 1 | part | role | place || 2 | reason | effect | source |