3. Which organism is known as nature's ploughman?
honeybee
rat
bird
earthworm
4. Which soil can retain more water?
sandy soil
clayey soil
loamy soil
polluted soil
loamy soil
clayey soil
sandy loam
sandy soil
5. Coconut trees thrive in coastal regions where the soil present is mainly-

1 earthworm

2 clayed soil

3 sandy soil​