All Free Everyday Science MCQs with Answers

1161. Which one of the following is not a true snake________ ?

• A. Blink snake
• B. Glass snake
• C. Sea snake
• D. Tree snake

Explanation: A glass snake is actually a legless lizard, not a true snake; it may also have movable eyelids and external ear openings. The option appears to mean blind snake, which is a genuine snake group.

1162. How many noses does an ant have?

• A. One
• B. Two
• C. Three
• D. None

Explanation: Ants have no nose like a vertebrate; they detect smells mainly through chemoreceptors on their antennae. Therefore the expected count of noses is none.

1163. How many bones are present in face?

• A. 14
• B. 15
• C. 20
• D. 18

Explanation: The human face has 14 bones: six paired bones and two unpaired bones. The eight cranial bones are separate and are not included in this count.

1164. Study of Liver and its diseases is called?

• A. Mycology
• B. Angiology
• C. Hepatology
• D. Otology

Explanation: Hepatology is the branch of medicine concerned with the liver, gallbladder, biliary tree and related diseases. Mycology concerns fungi, while otology concerns the ear.

1165. Trachoma is the disease of the________ ?

• A. Brain
• B. Spinal cord
• C. Larynx
• D. Eye

Explanation: Trachoma is a contagious bacterial infection of the eye, especially the conjunctiva and cornea. Repeated infection can scar the eyelid and cause blindness.

1166. The number of facial bones in a human body ________?

• A. 15
• B. 14
• C. 22
• D. 26Purchasing Educational Biology Kits

Explanation: The skull has 14 facial bones, including the paired maxillae, zygomatic bones and nasal bones, along with the unpaired mandible and others. The 22 total bones refers to the entire skull, not just the face.

1167. Where would you find a Eustachian Tube?

• A. In the Brain
• B. In the Lung
• C. In the Ear
• D. In Stomach

Explanation: The Eustachian tube connects the middle ear with the back of the throat and helps equalise air pressure on both sides of the eardrum. It is therefore part of the ear, not the brain, lung or stomach.

1168. Vitamin E reduces the requirement of _________ .

• A. Iron
• B. Zinc
• C. Selenium
• D. Magnesium

Explanation: Vitamin E and selenium work together as antioxidants, so adequate vitamin E can reduce the body’s requirement for selenium. The other listed minerals do not have this standard nutrient-sparing relationship.

1169. Scurvy is caused due to the deficiency of ___________?

• A. Vitamin A
• B. Vitamin D
• C. Vitamin C
• D. None of these

Explanation: Vitamin C is needed for collagen formation and healthy connective tissue; its deficiency causes scurvy, with symptoms such as bleeding gums and poor wound healing. Vitamins A and D deficiencies cause different disorders.

1170. Of the total number of genes inherited by a child:

• A. more are from the father
• B. more are from the mother
• C. there are an equal number from each parent
• D. there is never a constant number from the parents

Explanation: A child normally receives one set of chromosomes, and therefore roughly half of the nuclear genes, from each parent. This equal contribution is independent of whether the child is male or female, apart from special sex-linked details.