A. Because the tea-spoon attracts them.
Q. Why are the sides of a pond covered with leaves, while the middle of the pond is quite clear?
A. Because the shore attracts the leaves to itself.
Q. Why do all fruits, &c. (when severed from the tree) fall to the earth?
A. Because the earth attracts them.
Q. Why do persons (who water plants) very
often pour the water into the saucer, and not over the plants?
A. Because the water in the saucer is supped up by the mould (through the hole at the bottom of the flower-pot), and is transferred to the stem and leaves of the plant by capillary attraction, (See p. [84]).
Q. Why is vegetation on the margin of a river more luxuriant than in an open field?