Question 2 :
If the reflecting surface is on the inner side, the mirror is called ____.
Question 3 :
A shopkeeper wanted to fix a mirror which will give a maximum view of his shop. What type of mirror should he use?
Question 4 :
Which of the following precautions need to be taken while using electric gadgets/appliances/ circuit?
Question 5 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cbd4f59b460d7261ecae.jpg' />
In the circuit shown in the above figure, would any of the bulb glow when the switch is in the ‘OFF’ position?
Question 6 :
True or False. If a large current passes through a wire, the wire may become so hot that it may even melt and break.
Question 7 :
The odometer of a car reads 57321.0 km when the clock shows the time 08:30 a.m. At 08:50 a.m., the odometer reading has changed to 57336.0 km. What is the distance covered by the car during this time?
Question 8 :
Classify the following as motion along a straight line, circular or oscillatory motion : Motion of a child on a see-saw.
Question 10 :
State whether the statement is correct or not : Distance between two cities is measured in kilometres.
Question 12 :
Name the process and the organ which help in removing carbon dioxide wastes from the body.
Question 13 :
What happens to useful substances which are filtered along with harmful substances in kidneys?
Question 14 :
Open drain system is a breeding place for which of the following.
Question 16 :
Semi-solids such as faeces that settle down during wastewater treatment are called as
Question 17 :
State true or false: Sanitation and disease are related to each other as lack of sanitation can cause diseases.
Question 20 :
On which of the following day is World Water Day observed?
Question 21 :
Which of the following is a way to use water economically?
Question 25 :
State True or False: In winter the winds blow from the land to the ocean.
Question 26 :
What planning is required in advance to deal with the situation created by a cyclone ?