SCIENCE

Exhaled air contains CO2

Exhaled air contains O2

Exhaled air contains both CO2 and O2

none of the above

Xylem tissue

Vascular tissue

Root hair

Phloem tissue

budding

spore formation

vegetative propagation

fragmentation

vegetative propagation - eyes

stem cutting - stem

bud formation - leaf

spore formation

Cross and Self-pollination.

self and cross-pollination

both are cross-pollination

both are self-pollination.

Method A is better. Do not depend on pollinating agents.

Method C is better. It produces new varieties.

Both the methods.As new varieties of plants are formed.

None of the methods.

(a) is a pollen tube, (b)is a pollen grain, and (c) is the zygote.

(a) is a pollen grain, (b)is the zygote, and (c) is a pollen tube,

(a) is a stigma, (b) is a pollen tube, and (c) is the zygote.

(a) is a pollen grain, (b) is a pollen tube, and (c) is the zygote.

concave mirror

convex mirror

both concave and convex

plane mirror

1m

2m

0.5m

1.5m

violet, indigo, blue, green, yellow, orange, and red

red, orange, yellow, green, blue, indigo, and violet.

red, orange, yellow, green, blue, and violet.

None of the above