Tamil Nadu Board Solutions for Chapter: Our Environment, Exercise 15: EVALUATION

Author:Tamil Nadu Board

Tamil Nadu Board Science Solutions for Exercise - Tamil Nadu Board Solutions for Chapter: Our Environment, Exercise 15: EVALUATION

Attempt the practice questions on Chapter 1: Our Environment, Exercise 15: EVALUATION with hints and solutions to strengthen your understanding. Standard 3 Term III Science solutions are prepared by Experienced Embibe Experts.

Questions from Tamil Nadu Board Solutions for Chapter: Our Environment, Exercise 15: EVALUATION with Hints & Solutions

EASY
3rd Tamil Nadu Board
IMPORTANT

Vijay placed two things 'P' and 'R' (one living and one non-living) in separate cages with food and water.

Number of weeks

Weight of 'P'

Weight of 'R'

Week 1

2kg

1.5kg

Week 2

4kg

1.5kg

Week 3

6kg

1.5kg

Week 4

8kg

1.5kg

Which thing is likely to be a living thing? Give a reason for your answer.

EASY
3rd Tamil Nadu Board
IMPORTANT

Vijay placed two things 'P' and 'R' (one living and one non-living) in separate cages with food and water.

Number of weeks

Weight of P'

Weight of 'R'

Week 1

2kg

1.5kg

Week 2

4kg

1.5kg

Week 3

6kg

1.5kg

Week 4

8kg

1.5kg

 

What will be the weight of living thing in week 6? 

EASY
3rd Tamil Nadu Board
IMPORTANT

Write two examples for biotic and abiotic factors. 

EASY
3rd Tamil Nadu Board
IMPORTANT

Write any three differences between living and non-living things.

EASY
3rd Tamil Nadu Board
IMPORTANT

List the abiotic factors needed for insects. 

EASY
3rd Tamil Nadu Board
IMPORTANT

What are the biotic factors of a balanced ecosystem?  

EASY
3rd Tamil Nadu Board
IMPORTANT

Why plants are called primary producers?  

EASY
3rd Tamil Nadu Board
IMPORTANT

Write any four benefits of plants.