Default Title

Question (1)

QN0033802

A village replaces 120 ordinary electric bulbs (60 W each) with 120 LED bulbs (10 W each). If the bulbs are used for 5 hours every day, how much electrical energy is saved in one day?

(A) 6 kWh
(B) 18 kWh
(C) 30 kWh
(D) 36 kWh

Correct Answer: C

Explanation:

Power saved per bulb = 50 W. Total power saved = 120 × 50 = 6000 W = 6 kW. Energy saved in 5 hours = 6 × 5 = 30 kWh.

Link:

Report Error

Question (2)

QN0033803

A family wants to build a house that remains cool in summer and uses locally available resources. Which combination of materials is the most suitable?

(A) Glass, steel and plastic
(B) Clay, hay and cow dung
(C) Cement, tiles and aluminium
(D) Marble, granite and iron

Correct Answer: B

Explanation:

Houses made of clay, hay and cow dung are environmentally friendly and remain cooler in summer.

Link:

Report Error

Question (3)

QN0033804

Four students prepared natural dyes using different methods. P: Boiled flower petals in water. Q: Mixed powdered coloured stones with water. R: Used leaf extracts. S: Mixed synthetic paint with water. Which students used only natural colouring materials?

(A) P and S only
(B) Q and R only
(C) P, Q and R only
(D) P and Q only

Correct Answer: C

Explanation:

Flowers, leaves and coloured stones are natural sources of colour, while synthetic paint is not.

Link:

Report Error

Question (4)

QN0033805

A farmer stores 240 kg of grain equally in 8 earthen pots lined with neem leaves. How much grain is stored in each pot?

(A) 20 kg
(B) 25 kg
(C) 30 kg
(D) 40 kg

Correct Answer: C

Explanation:

240 ÷ 8 = 30 kg.

Link:

Report Error

Question (5)

QN0033806

Why are neem leaves placed inside earthen pots used for storing grains?

(A) They increase the weight of grains.
(B) They make grains sweeter.
(C) They help protect grains from insects and pests.
(D) They absorb all the moisture from grains.

Correct Answer: C

Explanation:

Neem leaves act as a natural insect repellent and help protect stored grains.

Link:

Report Error

Question (6)

QN0033807

A group of children planted 15 saplings each. If 18 children participated and later 24 saplings did not survive, how many saplings remained growing?

(A) 246
(B) 252
(C) 258
(D) 270

Correct Answer: A

Explanation:

Total planted = 18 × 15 = 270. Remaining = 270 − 24 = 246.

Link:

Report Error

Question (7)

QN0033808

Which action best shows respect for nature in the same spirit as the people in the chapter?

(A) Throwing plastic wrappers into a forest
(B) Burning dry leaves every week
(C) Protecting forests and using natural resources carefully
(D) Cutting trees to build larger houses

Correct Answer: C

Explanation:

The chapter encourages protecting forests and using natural resources responsibly.

Link:

Report Error

Question (8)

QN0033809

During a festival, 48 solar-powered decorative lights were arranged equally in 6 rows. If each row had the same number of lights, how many lights were there in each row?

(A) 6
(B) 7
(C) 8
(D) 9

Correct Answer: C

Explanation:

48 ÷ 6 = 8.

Link:

Report Error

Question (9)

QN0033810

Which statement correctly explains why the Jenu Kurubas sing songs while collecting honey?

(A) To attract more bees
(B) To increase honey production
(C) To show respect and apologise to the bees
(D) To make honey sweeter

Correct Answer: C

Explanation:

They sing songs to show respect for nature and apologise to the bees.

Link:

Report Error

Question (10)

QN0033811

A school first-aid box contains 12 bandages, 4 antiseptic bottles and 8 cotton rolls. If 5 bandages and 2 cotton rolls are used during a sports event, how many of these three items remain altogether?

(A) 17
(B) 19
(C) 21
(D) 23

Correct Answer: B

Explanation:

Remaining items = (12 − 5) + 4 + (8 − 2) = 7 + 4 + 6 = 19.

Link:

Report Error

Question (1)

A village replaces 120 ordinary electric bulbs (60 W each) with 120 LED bulbs (10 W each). If the bulbs are used for 5 hours every day, how much electrical energy is saved in one day?

Explanation:

Link:

Question (2)

A family wants to build a house that remains cool in summer and uses locally available resources. Which combination of materials is the most suitable?

Explanation:

Link:

Question (3)

Four students prepared natural dyes using different methods. P: Boiled flower petals in water. Q: Mixed powdered coloured stones with water. R: Used leaf extracts. S: Mixed synthetic paint with water. Which students used only natural colouring materials?

Explanation:

Link:

Question (4)

A farmer stores 240 kg of grain equally in 8 earthen pots lined with neem leaves. How much grain is stored in each pot?

Explanation:

Link:

Question (5)

Why are neem leaves placed inside earthen pots used for storing grains?

Explanation:

Link:

Question (6)

A group of children planted 15 saplings each. If 18 children participated and later 24 saplings did not survive, how many saplings remained growing?

Explanation:

Link:

Question (7)

Which action best shows respect for nature in the same spirit as the people in the chapter?

Explanation:

Link:

Question (8)

During a festival, 48 solar-powered decorative lights were arranged equally in 6 rows. If each row had the same number of lights, how many lights were there in each row?

Explanation:

Link:

Question (9)

Which statement correctly explains why the Jenu Kurubas sing songs while collecting honey?

Explanation:

Link:

Question (10)

A school first-aid box contains 12 bandages, 4 antiseptic bottles and 8 cotton rolls. If 5 bandages and 2 cotton rolls are used during a sports event, how many of these three items remain altogether?

Explanation:

Link:

Excel With Tutors

ExcelWithTutors

For Student

For Tutors

Learn

OUR POLICY