General Science Class 4 MCQs MCQs - General Science Practice | PakExamPoint
Practise General Science Class 4 MCQs MCQs in General Science. Attempt multiple-choice questions, check answers and revise related subtopics.
General Science Class 4 MCQs MCQs and revision practice
Study General Science Class 4 MCQs through multiple-choice questions in General Science. This subtopic contains 296 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.
Use these General Science Class 4 MCQs MCQs to identify the facts, rules or methods you need to revise. Where an explanation is available, work through it and write down why your chosen option was correct or incorrect. Revisit difficult questions after reviewing your notes, then use exam mode for timed practice.
Explanation Plants prepare their food (glucose) through photosynthesis. Which requires sunlight , water , carbon dioxide, and chlorophyll. Sunlight provides the energy needed to power the photosynthetic process.
Explanation Decomposers play a crucial role in breaking down dead animals, plants, and organic matter, releasing nutrients back into the environment. This process is essential for: Recycling nutrients Improving soil fertility Supporting plant growth and development Maintaining ecosystem balance
D. Imbalances in fluid volume in the vessels and tissues
Check answer and explanation
Answer: Goiter
Explanation Goiter is caused by iodine deficiency. It results in an enlarged thyroid gland. Iodine deficiency can cause mental retardation in children . Particularly if the deficiency occurs during fetal development or early childhood. This is because iodine is essential for brain development and thyroid function. The effects of the thyroid come from two iodine-containing hormones .
Explanation Cat and Dog is/are a secondary consumer . Because they eats primary consumers (herbivores). Like mice, birds, and rabbits . Last verified on 19-03-2026
Explanation The orbit of the Earth around the Sun is an ellipse , meaning that it is an elongated circle , with the Sun located at one of the two foci (plural of focus) of the ellipse. This means that the distance between the Earth and the Sun varies throughout the year. With the closest point (perihelion) occurring around early January. With the farthest point (aphelion) occurring around early July .
گوشت، پیاز، انڈے، آیوڈائزڈ نمک اور سمندری غذا میں کون سا معدنیات موجود ہے؟
A. Calcium
B. Iodine
C. Magnesium
D. Copper
Check answer and explanation
Answer: Iodine
Explanation Iodine is present in : Seafood (especially seaweed and shellfish) Iodized salt Meat (in small amounts) Onions (in small amounts) Eggs (in small amounts) Iodine is essential for thyroid function and brain development.
Explanation Total bones in adult human body = 206 At birth = 270–300 bones ( fuse to become 206 ) The total bones of our body can be divided into: Axial skeleton = 80 bones Appendicular skeleton = 126 bones Additional information : Newborn baby has 300 bones Longest bone = Femur Shortest bone = Stapes Bones in human skull = 22 Last verified on 30-03-2026