About _________% of total rainfall is runoff.
10
90
50
30
Fir tree has more than _______ species.
20
25
A plant tissue
Stem
Roots
Leaves
Xylem
A major root that penetrates deep into the soil.
Tap roots
Fibrous roots
Lateral roots
Root hairs
Maple trees have
Small roots
Long roots
lateral roots
The water that is not of much use to man
Fresh
Saline
Impure
Muddy
A plant tissue that carries water and dissolved minerals from roots.
roots
stem
fruits
xylem
