HSC Science Class 12 - Tamil Nadu Board of Secondary Education Question Bank Solutions

Give the meaning of the following phrasal verb and frame sentence using them

bank on

Read the list of words formed by adding suffixes.

Form two derivatives from each of the following words by adding prefixes and suffixes.

Now, you are going to listen to the cautionary instructions that are given to the general public living in flood-prone areas. Listen carefully and complete the following sentences.

Floods are an inevitable natural disaster that can occur in any part of the world. Floods can prove all the more disastrous in localities, where population density is high. Preparation for Disaster Management has become imperative for any city, town, or village during monsoons. The Government Department entrusted with Disaster Management makes periodic announcements about the precautions to be taken whenever floods are anticipated.

Now, you are going to listen to the cautionary instructions that are given to the general public living in flood-prone areas. Listen carefully and complete the following sentences. For the attention of the public, here is an announcement from the Department of Disaster Management. As per the warning issued today by the Meteorological Department, there exists a high probability of a widespread heavy downpour from the early hours of Sunday and consequent flooding of low-lying areas. In order to ensure the safety of life and property, everyone is hereby warned and advised to take certain precautionary measures:

• First of all, prepare a household flood plan and be ready to respond to the situation.
• Find out the locations of the closest flood shelters available and routes to reach them.
• Maintain an emergency kit comprising water bottles, biscuit packets, medical supplies, a torchlight, and a whistle to signal for help.
• Paste or fix a list of emergency telephone numbers on the wall in a visible spot.
• Switch off hazardous items like gas cylinders and disconnect electrical gadgets.
• Secure important personal documents and valuables in a waterproof case and place it in an accessible location.
• Place small pieces of furniture and clothing on tables and cots.
• Shift all the small objects safely to the loft.
• Empty your refrigerators and leave their doors open to avoid damage in case they float.
• Charge your mobile phones as well as your battery banks so as to communicate with friends, relatives, and emergency services.
• Place sandbags in the toilet bowls and bathroom drain holes to prevent sewage inflow.
• Prepare and pack food with a long shelf life.
• Finally, listen to the periodic news updates through your portable communication devices and follow the instructions implicitly.

1. The announcement was made by the Department of ______.
2. Widespread heavy rains are expected from the early hours of ______. 
3. The public is asked to find out the locations of ______. 
4. An emergency kit should contain water bottles, biscuit packets, and a ______.
5. A list of ______should be displayed on the wall. f) Important documents can be secured by keeping them in a______ case. 
6. Damage to refrigerators can be avoided by ______. 
7. Mobile phones should be charged to enable the marooned to contact their friends, relatives and ______. 
8.  ______should be placed in the toilet bowls to prevent sewage inflow.
9. Listen to the ______and follow the instructions implicitly.

On the occasion of World Environment Day, you have been asked to deliver a speech during morning assembly on the importance of tree planting. Write the speech in about 100 – 150 words.

• Introduction
• Suggested value points Pollution control – Medicine – Necessary for wildlife – Cause rainfall
• Conclusion

Prepare a speech on “The importance of a reading habit” in about 100–150 words using the hints given below together with your own ideas.

• Introduction
• Suggested value points Knowledge enrichment – Skill development – Meaningful usage of time – Overall development
• Conclusion

Read the passage given below and make notes.

To match the best cities across the world, the Government of India initiated ‘smart cities’ to drive economic growth and improve the quality of life of people. The agenda under smart city promises to resolve urban sustainability problems. Urban forests provide a range of important ecosystem services that are critical for the sustainability of cities. Urban forestry, which is defined more as ‘Management of Trees’ contributes to the physiological, sociological and economic well-being of the society. Mangroves, lakes, grasslands, and forests in and around our cities, act as sponges that absorb the air and noise pollution and they present themselves as our cultural and recreational hotspots. However, these spots are rapidly being reclaimed and replaced in the name of development. Presence of urban green has shown to increase the economic value of the place.

Urban forests contribute to reduce the cost of building storm water drain systems for municipalities and neutralizing urban heat island effect. Plants not only provide shade but also help in regulating the micro-climate. They help regulate energy budgets, improve air quality, and curtail noise pollution. Trees, herbs, shrubs, and grasses arrest sedimentation and prevent other pollutants from entering our water systems. This will give a chance for our urban lakes and rivers to recover and help improve aquatic ecosystems. Biodiversity also gets a boost through the urban forestsand helps create corridors connecting the forest areas. High biodiversity areas can also help to build resilient ecosystems. Availability of forests within our urban areas gives an opportunity for children to connect to the natural environment and learn about native species.

Choose the correct options and complete the dialogue.

Complete the sentence with the correct tense form of the verb in brackets.

(tell) me exactly what (happen) last night!

Complete the sentence with the correct tense form of the verb in bracket.

Mrs. Mageswari is my Maths teacher. She (teach) me for four years.

Complete the sentence with the correct tense form of the verb in bracket.

I (never) think of a career in medicine before I spoke to my Biology teacher but now I think (seriously) it.

Complete the sentence with the correct tense form of the verb in bracket.

Oh no! I (forget) to bring my assignment! What am I going to do? This is the second time I (do) this!

Complete the sentence with the correct tense form of the verb in bracket.

I can’t remember what my teacher (say) yesterday about our homework. I (not listen) properly because Hussain (talk) to me at the same time.

Complete the sentence with the correct tense form of the verb in bracket.

Last year we (go) on a school trip to Kanyakumari. We (have) a very interesting time.

Complete the sentence with the correct tense form of the verb in bracket.

At the moment I (think) about what course to pursue next year but I ( not make) a final decision yet.

Complete the sentence with the correct tense form of the verb in bracket.

I (get) up at 7 every morning but this morning I (sleep) for a long time and I (not get) up until 8.

Fill in the blank with the correct form of the verb given in the bracket.

Everyone______ when the earthquake hit the small town. (sleep)

Fill in the blank with the correct form of the verb given in the bracket.

Evangelene ______ her job a couple of years ago. (quit)

Fill in the blank with the correct form of the verb given in the bracket.

Where ______ your last holidays? (you spend)

Fill in the blank with the correct form of the verb given in the bracket.

I think Suresh ______ for Tiruvallur next morning. (leave)

Fill in the blank with the correct form of the verb given in the bracket.

I was angry that I ______ such a mistake (make).