User Forum

Some of the garbage we throw, rots and gets mixed with the soil. Such garbage is called bio-degradable waste. This kind of waste does not cause pollution. Which of the following is bio-degradable?


APolythene bag
BOld tyre
CPlastic mug
DBanana peel

Mangroves are a collection of medium-sized trees and shrubs that have tube-like aerial roots for breathing. They thrive in salty water. Where does one find mangroves?


ACoastal areas
BDeserts
CCold, icy areas
DMountainous areas

In 2011 an earthquake hit this northeast Indian state causing death and destruction. It is the second smallest state in India. Identify it.

AGoa
BSikkim
CGujarat
DKerala

Grasses are flowering plants that have hollow stems. They are found all over the world. Which of the following is not a type of grass?


ABambooJ
BSugarcane
CWheat
DBanyan

Read the given statements.
(i) A compact fluorescent lamp uses 75% less energy than a traditional bulb.
(ii) Earth Hour is celebrated on the same day every year.
(iii) The screen saver on a computer saves energy.
(iv) About 30% of the cool air inside a refrigerator escapes everytime its door is opened.
How many statements given above is/ are true?

A1
B2
C3
D4

A child inherits characteristics from both its father and mother. What percentage of characteristics does it inherit from its mother?

A20%
B25%
C50%
D75%

Four students made a statement related to mango. Which of them had made incorrect statement.
Rohan : There are more than 1500 varieties of mangoes in India.
Priti : Every year, the International Mango Festival is held in Nagpur.
Raj : Mango fruit is an excellent source of vitamin A, B6, C, E and flavonoids.
Simran : Best 50 varieties of mangoes are only exhibited in International Mango festival.

APriti and Raj
BRohan and Simran
CPriti and Simran
DRohan and Raj