West Bengal Board Solutions for Chapter: Human Food, Exercise 40: Exercise 40

Author:West Bengal Board

West Bengal Board Science Solutions for Exercise - West Bengal Board Solutions for Chapter: Human Food, Exercise 40: Exercise 40

Attempt the practice questions on Chapter 5: Human Food, Exercise 40: Exercise 40 with hints and solutions to strengthen your understanding. Environment and Science Class 7 solutions are prepared by Experienced Embibe Experts.

Questions from West Bengal Board Solutions for Chapter: Human Food, Exercise 40: Exercise 40 with Hints & Solutions

EASY
7th West Bengal Board
IMPORTANT

Write down where is water stored in your body.

  1. Blood
  2. _____
  3. _____
  4. _____
  5. _____
  6. _____

EASY
7th West Bengal Board
IMPORTANT

How does our body lose water? Write your answers in the space provided below.

  1. Sweat
  2. _____
  3. _____
  4. _____

EASY
7th West Bengal Board
IMPORTANT

Different organs of the human body and body fluids contain a sizeable amount of water.

Name of organ/body fluid Water content (%) by mass
Lungs 83
Brain 73
Liver 85
Bones 31
Muscle 75
Skin 64
Heart 73
Kidney 83
Blood 90
Saliva 95

Now arrange the organs/body fluids of the human body from the list according to their decreasing water content.