The important function of stomata is __________.

(a)

Conduction

(b)

Transpiration

(c)

Photosynthesis

(d)

Absorption

Organs of absorption is__________

(a)

Root

(b)

Stem

(c)

Leaf

(d)

Flower

The habitat of water hyacinth is

(a)

Aquatic

(b)

Terrestrial

(c)

Desert

(d)

Mountain

___________ is a natural science concerned with study of life and living organisms.

(a)

Chemistry

(b)

Biology

(c)

Zoology

(d)

Physics

The underground part of the main axis of a plant is known as_________.

(a)

shoot

(b)

node

(c)

root

(d)

leaf

Main axis of the shoot system is called____________.

(a)

stem

(b)

root

(c)

Leaf

(d)

buds

On the lower side of the leaf there are tiny pores or openings known as ____________

(a)

Leaf base

(b)

mid rib

(c)

petiole

(d)

stomato

World habitat day is observed on first Monday of________.

(a)

October

(b)

November

(c)

September

(d)

December

_____________ is one of the fast growing plant during active growth phase.

(a)

Mango

(b)

Neem

(c)

Hibiscus

(d)

Bamboo

___________ is the longest river in the world.

(a)

Sutlej

(b)

Yellow

(c)

Nile

(d)

Congo

Length of Nile river is_____________

(a)

6560 km

(b)

6650 km

(c)

6506 km

(d)

5606 km

Air spaces in stems and petioles of ___________ plant are useful for floating in water.

(a)

lotus

(b)

water lily

(c)

water hyacinth

(d)

Agare

The first land plants are____________

(a)

Neem tree

(b)

hibiscus'

(c)

banyan tree

(d)

mosses and liver worts

The __________ forest in South America produces half of the world's oxygen supply.

(a)

Taiga

(b)

Congo rain

(c)

Amazon rain

(d)

Darin tree