用’Yes”或’No” 回答下列问题。(10%)
(1)_____Can trees protect the soil?
(2)_____Is the surface of the Earth flat?
(3)_______Are there living things on the Earth?
(4)_______Does air have smell?
(5)_______Does the Earth look like a ball?
(6)_______Is there water on the surface of the Earth?
(7)_______Does water exert pressure in all directions?
(8)______Can trees make the air fresh?
(9)_______Is the climate(气候) of the four seasons the same in different parts of the Earth?
(10)_______ Does water exert an upward push on all objects in the water.