Importance of Gymnosperms

Q.

Why are gymnosperms important to human?

Q. The tallest tree in the world is a gymnosperm called Sequoia. It is commonly known as giant redwood.

1. True
2. False

Q.

Sequoia sempervirens is a/an

1. angiosperm.

2. gymnosperm.

3. tree fern.

4. gigantic alga.

Q. What is the use of needle line leaves and sloped branches to Pinus?

Q.

Sequoia sempervirens is a/an

1. Angiosperm

2. Gymnosperm

3. Tree fern

4. Gigantic alga

Q. Match the plants with their respective rate of growth. Choose the answer which gives the correct combination of alphabets of two columns.

	Plants		Rate of growth
A	Cycas	p	40 centimeters per day
B	Gaint bamboo	q	10 feet in hundred years
C	Cucumber tendril	r	6 centimeters per hour

1. A-r, B-p, C-q
2. A-p, B-r, C-q
3. A-q, B-p, C-r
4. A-p, B-q, C-r

Q. Sequoia belongs to

1. Cycadofilicales
2. Gnetales
3. Coniferales
4. Dicots