Question and answer
Fill in the blanks. 1.cactus and date palm trees are desert plants.
2.In marshes areas, the soil is clayey and sticky.
3. Desert plants have spine instead of leaves.
4.plants in hills like pine have cone instead of flowers.
Match the following.
a) paper ----bamboo
b) medicines----Tulsi
c) cloth------cotton
d) furniture------Teak
1.Multiple choice questions (MCQs)
a) plants growing in hilly areas and mountains have the following adaptations.
A. Waxy coating
b) which of the following has breathing roots?
A. Mangrove
c) In which season do trees in the plains shed their leaves?
A. Autumn
d) which of the following is a paraaitic plant?
A. Cuscuta
a) cedar is an example of a tree that grows in hilly areas.
b) places which have sticky and clayey soil and plenty of water are known as marshy.
c) insectivorous plants traps insects with the help of specially designed leaves.
d) Aquatic plants have special adaptive features to help them float or stay underwater.
Q. Write T for true and F for false.
a. plants like jute and flax are used for making medicines. (F)
b. Water hyacinth and wolffia are floating plants. (T)
C. Peepal has thin and board leaves to capture sunlight for photosynthesis. (T)
d. Plants in deserts have cone instead of flowers. (F)
e. Cuscuta is an insectivorous plant. (F)..
Q. Match the following
a) swamps ----- sunderbans
b) hills ------------- cedar
C) neem ------------ shed leaves in winter
d) cotton ----------- cloths
Q. Read the following two statements and choose the correct option.
Statement 1. Tape grass has narrow, thin, ribbon- like leaves.
Statement 2 . Hydrilla leaves have no stomata.
A. Both statements 1&2 are correct.
Life and survival of plants
State board
Q6:-Short answer type questions
a) Define adaptation.
Ans.Adaptation are those characteristics that allow a plant or an animal to live in a specific environment.
b)Why does tape grass have narrow and thin leaves?
Ans. Tape grass is a under water plant so in order to offer least resistance to water current. That's why tape grass have narrow and thin leaves
C)write two adaptations of desert plant?
Ans. Adaptation of desert plants
1. plant in desert have either no leaves or very few leaves to prevent water loss from the surface of leaves
2.Thick fleshy stem can store water
D)what are breathing roots?
Ans.The roots of the plants growing in marshes are unable to get air therefore, the roots of these plants come out of water and soil to breath such roots are called breathing roots.
Q7 Long answer type questions
a) What are the four categories of terrestrial planets? Describe their adaptations with one example each
Ans.Terrestrial plants are categorised into four types:-
1.plants in deserts
Plant in desert have either no leaves or very few leaves to prevent water loss from the surface of leaves ex:-cactus
2.plant in marshes
Marshy places have sticky and clayey soil and plenty of water the roots of the plants growing in marshes are unable to get air
Ex:-mangroves
3.plant in hills
In hilly areas the temperature is very low plants are adapted to withstand the harsh cold environment
Ex:-cedar
4.plant in plains
The climate in plains is neither too hot nor too cold they receive moderate rainfall this plants thin and broad leaves so that they can capture a lot of sunlight to make their food
Ex:- mango
b) How do parasitic plants derive their food? Explain with example.
Ans. Parasitic plants are plants that get all or part of their nutrients from other plants.some plants can only photosynthesis partially and thus cannot produce all of their food
Ex cuscuta is also known as amarbel.
C) What are the main difference between terrestrial and aquatic plants?
Ans . Terrestrial planets:-
1.they grow on land .
2 .they need medium or very few water to grow
3.leaves do not have waxy coating except hilly area plant
4.they have stomata
5.they have well developed roots.
Aquatic plants:-
1.they grow in water
2. They need lots of water to grow
3.leaves have waxy coating
4.some plants do not have stomata
5.their roots are not well developed.answersofbooks.blogspot.com
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