1.   Above him, the trees became black silhouettes against a midnight blue sky.

2.   In great age, the tree becomes chalky white.

3.   In open country, trees becomes sites for breeding colonies which May also facilitate synchronization of breeding.

4.   The buried trees became coal seams and the mud and sands turned to shale and sandstone.

5.   The light slowly began to fade and the trees became mere shadows.

6.   Higher the Suzuki climbed, and higher, until the lane petered out into a dirt track and gradually the trees became fewer.

7.   Americans had their mistletoe and other festive green, but the tree became the symbol of the natural world that found its way into the greatest number of homes.

8.   As old-growth forests disappear and harvested trees become smaller, so does the amount of clear wood away from the perimeter.

9.   As leaves wither and drop, trees under stress become more vulnerable to the lethal pests.

10.   At lunch, with the sun pouring in, the walls seem to disappear and the trees of Central Park become the main focus.