Test Details

Report

Our Environment

write a topic on biodegradable and non-biodegradable waste

Feb 06, 9:00 PM

60 minutes

Feb 06, 10:00 PM

100.0 marks

MCQ

50 questions

Rajesh Kharb

MSc,MEd,MBA,PHD

Class Details

Mathematics

Chemistry

Physics

Biology

English

English Grammar

💁11{A}The Balaji Academy

Mathematics

Chemistry

Physics

Biology

English

English Grammar

It is a international standard of education system. Every class has smart classroom with audio-visual standard.

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Question Text

Question 1 :
In which year UNEP succeeded in forging an agreement to freeze the CFC production at 1986 levels?

Question 2 :
Excessive exposure of humans to U V-rays results in (i) damage to immune system (ii) damage to lungs (iii) skin cancer (iv) peptic ulcers

Question 3 :
Suggest one word for the statement/ definition: The physical factors like temperature, rainfall, wind and soil of an ecosystem

Question 4 :
Organisms which obtain food from other living organisms are known as

Question 6 :
Which is the correct advantage of cloth bags over plastic bags during shopping?

Question 9 :
How much percentage of energy of sunlight is captured by green plants?

Question 15 :
Suggest one word for the following statement/ definition: The physical and biological world where we live in

Question 20 :
State TRUE or FALSE: Food chain is a series of organisms feeding on one another

Question 22 :
Which of the following group does not contain only biodegradable items?

Question 24 :
State True or False: Green plants get their food from organic compounds

Question 25 :
State True or False: All green plants and blue green algae are producers

Question 26 :
Organisms of a higher trophic level which feed on several types of organisms belonging to a lower trophic level constitute the

Question 29 :
State TRUE or FALSE: Oxygen is sent through aerator in aquarium

Question 32 :
Name a gas which is used in refrigeration and in fire extinguisher?

Question 34 :
In an ecosystem, the 10% of energy available for transfer from one trophic level to the next is in the form of

Question 36 :
Accumulation of non-biodegradable pesticides in the food chain in increasing amount at each higher trophic level is known as

Question 38 :
Which of the following limits the number of trophic levels in a food chain?

Question 39 :
In a food chain, the third trophic level is always occupied by

Question 42 :
What are the materials which change their form and structure over time?

Question 45 :
Give a way in which biodegradable substances would affect the environment.

Question 46 :
How can you help in reducing the problem of waste disposal?

Question 47 :
Suggest one word for the statement/ definition: Each level of food chain where transfer of energy takes place

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