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Health and Disease – Maharashtra Board Class 7 Solutions for General Science

Health and Disease – Maharashtra Board Class 7 Solutions for General Science (English Medium)

MathematicsGeneral ScienceMaharashtra Board Solutions

Solution 1:

Group ‘A’ Group ‘B’
(a) lack of calcium 2. brittle bones
(b) lack of phosphorus 1. stunted growth
(c) lack of iron 4. anaemia
(d) lack of iodine 5. goitre

Solution 2:

  • Vitamin D is produced under the skin in early morning sunlight.
  • Deficiency of vitamin C causes a disease called scurvy.
  • The substance nicotine in tobacco is harmful for both heart and brain.
  • Taking intoxicating substances has adverse effects on the nervous system.

Solution 3.a:

Foods such as cod liver oil, shark liver oil, eggs, butter and cow’s milk contain vitamin D.

Solution 3.b:

Lack of calcium in the body makes the bones brittle and wears away the teeth.

Solution 3.c:

Wheat, jaggery, green leafy vegetables and dates contain plenty of iron.

Solution 3.d:

The following constituents of food should form a part of the diet of growing girls:

Constituent Source
Calcium Milk, milk products, wheat, leafy vegetables, carrots, cabbage, oranges, almonds
Vitamin D Cod liver oil, shark liver oil, eggs, butter, cow’s milk
Iron Wheat, jaggery, green leafy vegetables, dates

Solution 3.e:

Effects of taking intoxicating substances:

  1. Cigarettes and bidis contain tobacco. The nicotine in tobacco has damaging effects on the brain and heart. Gases in the tobacco smoke cause damage to the lungs.
  2. Smoking deposits tar in the lungs which may cause cancer.
  3. Chewing tobacco or gutkha can cause cancer of the mouth.
  4. Drinking alcohol or taking drugs such as ganja and opium has harmful effects on the nervous system and may even prove to be fatal in extreme cases.

8 Possible Side Effects Of Eating Dates You Must Know

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