Question

1 What is the area where a polar bear lives called? A the igloo B the desert environment C the Arctic habitat D the winter habitat 2 The conditions in an environment are caused by: A physical environmental factors. B summer factors and winter factors. C day factors and night factors. D only animal factors. 3 What does the word ‘adapted’ mean? A A living thing is well suited to where it lives. B A living thing is not suited to where it lives. C A living thing cannot survive on its own. D A plant that can live on the top of a mountain. 4 What does the word ‘distribution’ mean? A Where organisms are found in a habitat. B The total number of organisms living in a habitat. C The different species that live in a habitat. D The different tribes that live in a habitat. 5 One of the most important adaptations for organisms living in hot, dry areas is: A to wash regularly. B to not waste any water. C to have thick hair. D to have sharp claws. 6 Polar bears live in the Arctic. Why is their fur white? A White is the best colour for keeping cool. B Otherwise they would get muddled up with brown bears. C White is the best colour for keeping warm. D They are not seen easily by animals that they hunt. 7 One way in which fish are adapted to their habitat is: A they breathe using gills. B they breathe using air holes. C they can be caught using a hook and a worm. D they die of old age or disease. 8 Which of these is a seasonal change? A It is warmer during the day. B It is dark at night. C It is colder in winter. D A daisy flower opens and closes again. 9 What does the word ‘nocturnal’ mean? A Things that are cold. B Animals that go to sleep for the winter. C Organisms that are active at night. D Plants that lose their leaves in winter. 10 What does a rabbit do when winter comes? A It hibernates. B It migrates. C It grows thicker fur. D It dies. 11 A herbivore is: A an animal that only eats plants. B an animal that only eats other animals. C an animal that eats both plants and animals. D a plant that eats other plants. 14 Plants often turn some of the food they make into another substance for storage. The name of this substance is: A glucose. B starch. C fibre. D pasta. 3 Which of these shows the correct word equation for photosynthesis? A glucose + carbon dioxide →water +oxygen (+ energy) B glucose (+ energy) →oxygen + glycerol C water + carbon dioxide (+ energy) →glucose + oxygen D chlorophyll + carbon dioxide →water + glycogen 15 Leaves are often wide so that they can: A absorb as much sunlight as possible. B catch as much rain as possible. C provide shelter for animals living under them. D float to the ground when they drop in autumn. 16 Look at these chemical processes. photosynthesis respiration burning fuels Which of these processes add carbon dioxide to the air? A respiration and burning B respiration only C photosynthesis and respiration D burning only 17 Plants are important in keeping the atmosphere in balance because: A they use up oxygen. B they use up carbon dioxide. C they provide food for animals and humans. D they use water. 18 In human food chains, plants are important because: A they are primary consumers. B they are secondary consumers. C they are herbivores. D they are producers. 19 Starch is part of a balanced diet because: A it is needed for strong bones and teeth. B it helps the digestive system remain healthy. C it is a source of energy. D it is needed for growth and repair of cells. 20 Which of the following environmentalconditions will not increase the rate of photosynthesis in a crop plant? A well-watered soil B warm weather C bright sunshine D windy weather

Answer 1

Ответ:

1)c

2)a(?)

3)a

4)c

5)c

6)d

Объяснение:

Answer 2

1. What is the area where a polar bear lives called?

   • C the Arctic habitat

2. The conditions in an environment are caused by:

   • A physical environmental factors.

3. What does the word ‘adapted’ mean?

   • A living thing is well suited to where it lives.

4. What does the word ‘distribution’ mean?

   • A Where organisms are found in a habitat.

5. One of the most important adaptations for organisms living in hot, dry areas is:

   • B to not waste any water.

6. Polar bears live in the Arctic. Why is their fur white?

   • C White is the best colour for keeping warm.

7. One way in which fish are adapted to their habitat is:

   • A they breathe using gills.

8. Which of these is a seasonal change?

   • C It is colder in winter.

9. What does the word ‘nocturnal’ mean?

   • C Organisms that are active at night.

10. What does a rabbit do when winter comes?

    • C It grows thicker fur.

11. A herbivore is:

    • A an animal that only eats plants.

12. Plants often turn some of the food they make into another substance for storage. The name of this substance is:

    • B starch.

13. Leaves are often wide so that they can:

    • A absorb as much sunlight as possible.

14. Look at these chemical processes: photosynthesis, respiration, burning fuels. Which of these processes add carbon dioxide to the air?

    • A respiration and burning

15. Plants are important in keeping the atmosphere in balance because:

    • B they use up carbon dioxide.

Please note that question 12 and question 13 are missing in your list. If you have any additional questions or need further clarification, feel free to ask.