NCERT Solutions For Class 6 Science Chapter 9

CBSE All In One SCIENCE Class 6

Important Questions On 6th Science Chapter 9 For Practice

1. Which of the following are characteristics of living beings?
(i) Respiration (ii) Reproduction (iii) Adaptation (iv) Excretion
Choose the correct answer from the options below:
(a) (i), (ii) and (iv) only (b) (i) and (ii) only
(c) (ii) and (iv) only (d) (i), (ii), (iii) and (iv)
2. Which of the following cannot be called a habitat?
(a) A desert with camels.
(b) A pond with fishes.
(c) A jungle with wild animals.
(d) Cultivated land with grazing cattle.
3. Which of the following is an incorrect statement about excretion?
(a) Excretion takes place in plants.
(b) Excretion takes place both in plants and animals.
(c) Excretion is the process of getting rid of excess water only.
(d) Secretion is one method of excretion.
4. Earthworms breathe through their
(a) skin (b) gills (c) lungs (d) stomata
Following are some features of plants
(i) They lose a lot of water through transpiration.
(ii) Their leaves are always broad and flat.
(iii) They lose very little water through transpiration.
(iv) Their roots grow very deep into the soil.
5. Which of the combination of above features are typical of desert plants?
(a) (i) and (ii) (b) (ii) and (iv) (c) (ii) and (iii) (d) (iii) and (iv)
6. Which of the following is not an example of response to stimulus?
(a) Watering in mouth when we see delicious food items.
(b) Closing of leaves of mimosa plant when touched.
(c) Shutting our eyes when an object is suddenly thrown in our direction.
(d) A chick hatching out of an egg.
7. Boojho comes across an animal having a stream-lined and slippery body. What is the habitat of the animal?
(a) Water (b) Desert (c) Grassland (d) Mountain
8. Which of the following is correct for respiration in plants?
(a) Respiration takes place only during day time.
(b) Respiration takes place only during night.
(c) Respiration takes place both during day and night.
(d) Respiration takes place only when plants are not making food.

Answers Of Important Questions

1 (d),
2 (d),
3 (c),
4 (a),
5 (d),
6 (d),
7 (a),
8 (c).

Important Questions On Class 6 Science Chapter 9

आवास किसे कहते हैं?

किसी स्थान का परिवेश जिसमें पौधे, जंतु एवं अन्य जीव रहते हैं, उनका आवास कहलाता है। आवास का अर्थ है एक निवास स्थान (एक घर)। जीव अपने भोजन, पानी, हवा, आश्रय और अन्य जरूरतों के लिए अपने आवास पर निर्भर करते हैं। कई प्रकार के पौधे और जानवर समान आवास साझा करते हैं।

How are cactus adapted to survive in a desert?

Cactus lose very little water through transpiration. The leaves in cactus plants are present in the shape of spines. This helps in reducing loss of water from the leaves through transpiration. Its stem is converted into a leaf-like structure. Photosynthesis in these plants is usually carried out by the stems. The stem is also covered with a thick waxy layer, which helps to retain water. Cactus plants have roots that go very deep into the soil for absorbing water.

Fill up the blank: The presence of specific features, which enable a plant or an animal to live in a particular habitat, is called __________.

The presence of specific features, which enable a plant or an animal to live in a particular habitat, is called adaptation.

Fill up the blank: The habitats of the plants and animals that live on land are called __________ habitat.

The habitats of the plants and animals that live on land are called terrestrial habitat.

रिक्त स्थान की पूर्ति कीजिए: वे आवास जिनमें जल में रहने वाले पौधे एवं जंतु रहते हैं, ___________ आवास कहलाते हैं।

वे आवास जिनमें जल में रहने वाले पौधे एवं जंतु रहते हैं, जलीय आवास कहलाते हैं।

रिक्त स्थान की पूर्ति कीजिए: मृदा, जल एवं वायु किसी आवास के ____________ घटक हैं।

मृदा, जल एवं वायु किसी आवास के अजैव घटक हैं।

रिक्त स्थान की पूर्ति कीजिए: हमारे परिवेश में होने वाले परिवर्तन जिनके प्रति हम अनुक्रिया करते हैं, __________ कहलाते हैं।

हमारे परिवेश में होने वाले परिवर्तन जिनके प्रति हम अनुक्रिया करते हैं, उद्दीपन कहलाते हैं।

Which of the things in the following list are non-living? Plough, Mushroom, Sewing machine, Radio, Boat, Water hyacinth, Earthworm.

Non-living things: Plough, Sewing machine, Radio, Boat.

Give an example of a non-living thing, which shows any two characteristics of living things.

Bus and Machine both shows movement and consume energy.

निम्न में से कौन-सी निर्जीव वस्तुएँ किसी समय सजीव का अंश थीं? मक्खन, चमड़ा, मृदा, ऊन, बिजली का बल्ब, खाद्य-तेल, नमक, सेब, रबड़।

मक्खन, चमड़ा, ऊन, खाद्य-तेल, सेब, रबड़।

सजीवों के विशिष्ट लक्षण सूचीबद्ध कीजिए।

सजीवों के विशिष्ट लक्षण:
उन्हें भोजन की आवश्यकता होती है।
वे श्वसन करते हैं और, उत्सर्जित करते हैं।
अपने पर्यावरण पर प्रतिक्रिया करते हैं।
प्रजनन करते हैं, बढ़ते हैं और गति दिखाते हैं।

Explain, why speed is important for survival in the grasslands for animals that live there.

In the grassland there are less number of trees and places to hide. The animals are vulnerable to predators (e.g. lions, tigers, wolves etc.). They can only survive and escape if they can run faster. Therefore speed is important for survival in the grasslands for animals (e.g. deer) that live there.

Details: Parent Category: student Corner; Category: Class 6 Science; Published: 18 May 2020; Hits: 55

🚀 Start Your Learning Journey with Knowledge Center

Class 6 Science