Which of the following is the best source
of wood utilized in the construction of boats, railway lines etc.?
a) Cedrus
deodara
b) Pinus gerardiana
c) Cycas circinalis
d) Cycas revoluta
Explanation: it is the national tree of Pakistan
Which of the following gymnosperm is the best source of of food items?
a) Cedrus deodara
b) Pinus gerardiana
c) Cycas circinalis
d) Cycas revoluta
Explanation: also known as Chilghoza pine
The word “angiosperm” is derived from two words, angio: means…. and sperma means ……….
a) naked – seeds
b) sac – seeds
c) covered – sperm
d) sac – sperm
Which of the following is the highly evolved group of spermatophyte (seed plants)?
a) angiospermae
b) gymnospermae
c) bryophytes
d) ferns
Explanation: as the name shows the seeds of angiosperms are enclosed in the fruit and are called flowering plants
The most important and successful plants of angiospermae are plants belong to …
a) rose family
b) trees
c) grass family
d) all of these
Explanation: they have colonized great areas of the earth surface in practically all sort of soil and climate conditions
Which of the following angiosperm group/s form/s the main source of man’s food supply?
a) rose family
b) trees
c) grass family
d) all of these
Explanation: e.g. wheat and gram
