Class 10 Population and Migration Exercise 13.2 Solutions | English Curriculum Development Centre
Disclaimer
The following solutions are contributed by the Sci-Pi community. Each solution that appears on this page has undergone verification by the moderators. However, we highly encourage you to view these solutions as a guide rather than copying everything mentioned here.
Reading II
Discovering Migration: What Birds Reveal
A) Study the following word list and find their synonyms and antonyms as shown in the example. Write NA if the word does not have a synonym or antonym in the list.
Words having similar meanings are called synonyms. On the other hand, words having opposite meanings are called antonyms.
| Word | Synonym | Antonym |
| witness | onlooker, viewer, bystander, spectator | participants |
| transform | change, remodel, commute, revamp | stagnate, hold on |
| incredible | unbelievable, plausible, amazing, wonderful | credile, plausible |
| roadmap | guideline, plan, direction, map, protocol, procedure | NA |
| retrace | backtrack, recall, recollect, reminisce | forget |
| grab | clutch, snatch, capture | free, liberate, release |
| elevation | height, altitude | flat, level, lowness |
| waterlogged | wet, sodden, soaked, drenched | dehydrated, dry, arid |
| refuel | refill, replenish, restock | deplete, exhaust |
| cluster | array, band, bunch, clump | chump |
| crucial | vital, fundamental | trivial, insignificant, unimportant |
| perilous | risky, dangerous, precarious, terrifying | harmless |
B) Complete sentences (a-f) with their correct endings (i-vii).
| a) In the past people had the misconception that | iv) birds his underground or changed into some other birds. |
| b) To supply themselves with energy | ii) some birds stop to feed themselves with grains. |
| c) When the weather is favourable in spring | iii) birds fly back to their habitats. |
| d) As a sign of partial migration | i) some birds travel to different places while others do not. |
| e) To wait for a favourable weather | v) some birds choose to fly during the night. |
| f) For better flying conditions | vii) birds fly in large groups. |
| vi) birds fly rapidly like the marathon players. |
C) Answer these questions.
What is incredible about the migration of birds?
Rahul Bhujel
·
2 years ago
Solution
The thing incredible about the migration of birds is that they fly over land and oceans without a roadmap or campass to destinations that are sometimes thousands of miles away.
What things do birds consider while flying to their destinations?
Rahul Bhujel
·
2 years ago
Solution
Birds consider things like their speed, height, flight path, weather, food, layover sites, etc. while flying to their destinations.
Which animals other than the birds migrate to new places?
Rahul Bhujel
·
2 years ago
Solution
Other than birds, animal species like insects, amphibians, reptiles, fish, and mammals, migrate to new places.
What do scoters dive underwater for?
Rahul Bhujel
·
2 years ago
Solution
Scoters dive underwater to grab shellfish from the ocean floor.
Which birds travel up and down instead of going north to south?
Rahul Bhujel
·
2 years ago
Solution
Mountain birds, such as brindled titmice and mountain chickadees, travel up and down instead of going north to south.
What is partial migration of birds?
Rahul Bhujel
·
2 years ago
Solution
When within a bird species, some birds migrate while others do not, then such migration is said to be partial migration.
Why can sea terns not stay long in water?
Rahul Bhujel
·
2 years ago
Solution
Sea terns cannot stay long in water because they get waterlogged (or soaked).
How do birds feed themselves during their journeys?
Rahul Bhujel
·
2 years ago
Solution
Some of the birds feed on flying insects, while others feed at layover sites during their journeys.
What are the signs of birds flying in the night sky?
Rahul Bhujel
·
2 years ago
Solution
The chattering of birds and their passing in front of the moon are signs of birds flying in the night sky.
D) You might have seen or heard animals migrating to new places. What could be the reasons for animals to migrate? Discuss.
Grammar II
Subordinating conjunctions
When a conjunction is used to join or establish a relationship between an independent and a dependent clause, it is called a subordinating conjunction. Conjunctions other than for, and, nor, but, or, yet, and so (FANBOYS) are subordinating conjunctions.
A) Complete the sentences below with the correct alternatives from the brackets.
a) Even though ___ (we have different ideologies, we have similar ideologies), we are intimate friends.
we have different ideologies
b) (Despite/Even though) ___ our hard efforts, we could not establish a hospital in the village.
Despite
c) (Even though/In spite of) ___ the film was very popular, it was a commercial failure.
Even though
d) I enjoyed all the luxuries of life ___ (despite the fact/though) that I grew up in a remote village.
Despite the fact
e) I watched a late-night movie. (However, In spite of) I didn't feel sleepy in the morning class.
However
f) Even though ___ (scientists have made lots of research, scientists have made no research), there is no evidence of life on Mars.
scientists have made lots of research
g) (Even though/In spite of) ___ my efforts, I can't ever score excellent marks in the exam.
In spite of
h) My room was burgled ___ (although, yet) I had locked it securely before going out.
although
i) I called Siddhartha several times ___ (in spite of, but) he did not respond.
but
j) Even though we had not invited them ___ (they came to the party/they did not come to the party).
they did not come to the party
B) Join the following pairs of sentences with the connectives given in the brackets.
a) I was really exhausted. I could not sleep well. (Although)
- Although I was really exhausted, I could not sleep well.
- I could not sleep well although I was really exhausted.
b) She did not meet the requirements. She was shortlisted for the job. (In spite of)
- In spite of her failing to meet the requirements, she was shortlisted for the job.
- She was shortlisted for the job in spite of her failing to meet the requirements.
c) I decided to work for the company. The pay was quite low. (Even though)
- Even though the pay was quite low, I decided to work for the company.
- I decided to work for the company even though the pay was quite low.
d) We lost the match. We had prepared for the match really well. (Yet)
- We lost the match, yet we had prepared for it really well.
e) Dipisha completed her assignment. She had badly injured her hand. (Despite)
- Despite badly injuring her hand, Dipisha had completed her assignment.
- Dipisha had completed her assignment despite badly injuring her hand.
f) Kripa exercises every day. She is gaining weight. (However)
- Kripa is gaining weight; however, she exercises every day.
g) Barcelona won the match. They were limited to ten players. (Nevertheless)
- Barcelona won the match; nevertheless, they were limited to ten players.
h) I love to watch cricket on TV. My brother loves to watch football. (While)
- While I love to watch cricket on TV, my brother loves to watch football.
i) He had not gone to bed until midnight. He woke up early in the morning. (In spite of)
- In spite of not sleeping until midnight, he woke up early in the morning.
j) He was selected for the school team. He had not played well. (Although)
- Although he had not played well, he was selected for the school team.
Writing II
A large number of youths and professionals leave Nepal and migrate abroad each year. Write an essay expressing your opinion about the impacts of such migrations. Also include suggestions and solutiosn to the problems caused by migration.
About the Textbook