question_answer

Read the passage and choose the correct options. Water droplets form from warm __(48)__. As the warm air rises up in the __(49)__ it cools. Water vapor (invisible water in the air) always exists in our air. Warm air holds quite a bit of water. For example, in the summer it is usually very humid. When enough of these droplets collect together, we see them as __(50)__ . If the clouds are big enough and have enough water __(51)__ , the droplets bang together and form even bigger drops. When the drops get heavy, they fall because of gravity, and you see and feel rain.

A) air      

B) ice             

C) milk                 

D)          juice