Unit-11 Gadgets & Instrument: Weather Instruments – Class 9 English Exercise

This article presents the Exercise of Weather Instruments; one of the reading texts of class 9 English. In this exercise of weather instruments we have presented the question answer and grammar.

Exercise of Weather Instruments

A. Complete these sentences with the appropriate words from the text above.

a. Most of the FM stations broadcast the news at 7:00.

b. The function of a thermometer is to convert the change of temperature into numerical numbers.

c. The Earth is wrapped by the atmosphere.

d. The amount of water in the air is called humidity

e. The wind vane is also known as a weathercock

B. Choose the correct answer.

a. How did people get the weather information until the 18th century?

i. with weather instruments

ii. through their physical senses √

iii. through their intuitions

b. Which one of the following barometers is the latest one?

i. digital √

ii. mercury

iii. aneroid

c. What does a barometer measure?

i. atmospheric temperature

ii. atmospheric humidity

iii. atmospheric pressure √

d. Which of the following devices is NOT used to get weather information?

i. thermometer

ii. galvanometer

iii. anemometer √

e. Which of the following devices is used to measure the speed of the wind?

i. wind wave

ii. anemometer √

iii. hygrometer

C. Answer the following questions.

a. Where is an alcohol-filled thermometer mostly used?

⇒ An alcohol-filled thermometer is mostly used in that places where the temperature is under-35.

b. What is a barometer used for?

⇒ A barometer is used for measuring the atmospheric pressure.

c. What are the two kinds of hygrometers?

⇒ The two kinds of hygrometers are dry and wet bulb hygrometers and a mechanical hygrometer.

d. Give two examples of how an anemometer gives information about the weather.

⇒ If the speed of the wind is high, it indicates a storm. With the help of the anemometer, we can determine the speed of the wind which helps us to protect ourselves from many natural disasters.

e. Name the device that is used to measure the changes in weather conditions.

⇒ A wind vane is used to measure the changes in weather conditions.

f. What precautions should be taken while using a rain gauge?

⇒ The rain gauge must be placed in an open place without any obstacles.

Grammar II

A. Change the following sentences into indirect speech.

He said, “Don’t use my camera.”

⇒ He told me not to use his camera.

The doctor said, “Give up smoking.”

⇒ The doctor told him to give up smoking.

“Don’t touch the wire.” The electrician said to me.

⇒ The electrician told me not to touch the wire.

“Could you explain number four, please?” said the student.

⇒ The student requested the teacher to explain number four.

“Don’t worry about it, Mrs. Shrestha.” She said.

⇒ She told Mrs. Shrestha not to worry about it.

“Finish this job in an hour.” He said.

⇒ He told me to finish that job in an hour.

Amrita said to me, “Please help me.”

⇒ Amrita requested me to help her.

B. Complete the following sentences with the correct alternatives from the brackets.

Anju said that she…………….(had seen/has seen/was seen) the accident the day before.

⇒ had seen

She says that ……………(she could not stay there anymore/I can’t stay there anymore/she can’t stay there anymore)

⇒ she can’t stay there anymore.

The teacher told us that……………….(the Earth revolves round the Sun/the Earth revolved round the Sun/the Earth revolve round the Sun)

⇒ the Earth revolves round the Sun.

Pramesh said that………………(he had done his homework/I have done my homework/he has done his homework)

⇒ he had done his homework

The policeman ………………(requested/told/ordered) the thief not to move.

⇒ ordered

My father forbade me ……………… (to spend/do not spend/not to spend) so much money.

⇒ to spend

The head teacher forbade the students’ parents ………………(not to smoke/to not smoke/to smoke) on the school premises.

⇒ to smoke

Writing II

Write a newspaper article expressing your views on the impact of science and technology.

The Transformative Power of Science and Technology: Shaping Our Future

From breakthrough innovations to societal advancements, science and technology revolutionize the world.

Date: June 28, 2023

Byline: SkulTech

Science and technology have undoubtedly become the driving forces behind human progress and have profoundly shaped our world. With each passing day, new innovations and discoveries push the boundaries of what we once thought was possible, revolutionizing industries, transforming societies, and redefining the way we live our lives.

The impact of science and technology can be seen in various spheres, from healthcare to communication, transportation to agriculture, and beyond. The advancements in medical science, for instance, have extended human lifespans, eradicated diseases, and improved the quality of life for countless individuals. Treatments that were once unimaginable are now saving lives, thanks to breakthroughs in genetic research, pharmaceuticals, and medical devices.

Moreover, technology has redefined the way we communicate and connect with one another. The rise of the internet, social media, and mobile devices has bridged geographical gaps and transformed the way we share information, conduct business, and maintain relationships. It has opened up new avenues for collaboration, knowledge-sharing, and cultural exchange, fostering a global community like never before.

In the realm of transportation, science and technology have revolutionized the way we move. Electric vehicles are becoming more prevalent, reducing carbon emissions and contributing to a greener future. The development of autonomous vehicles holds the promise of safer roads and increased accessibility for those who are unable to drive. The exploration of space, driven by scientific curiosity and technological advancements, has expanded our understanding of the universe and opened up new possibilities for space tourism and extraterrestrial exploration.

Agriculture, too, has greatly benefited from science and technology. Innovations such as genetically modified crops, precision agriculture, and advanced irrigation techniques have increased crop yields, improved food security, and reduced environmental impact. As the world’s population continues to grow, these advancements are crucial in ensuring sustainable and efficient food production.

However, it is important to acknowledge that science and technology also present challenges and ethical considerations. Issues such as data privacy, artificial intelligence, and the impact of automation on jobs require careful deliberation and responsible governance. As we embrace technological advancements, it is imperative to strike a balance between innovation and ensuring that the benefits are accessible to all, while minimizing potential risks and negative consequences.

In conclusion, the impact of science and technology on our society cannot be overstated. From enhancing healthcare and transforming communication to revolutionizing transportation and revolutionizing agriculture, the progress we have witnessed is awe-inspiring. Science and technology continue to shape our future, offering immense potential for solving global challenges, improving lives, and fostering a more connected and sustainable world. It is crucial that we embrace these advancements responsibly, ensuring they serve the betterment of humanity as a whole.