Science MCQs

Practice multiple choice questions with instant feedback. Select an option to see if you're correct.

Total Questions
2100
Page 20 of 210
Question 191 Easy

The 'common cold' is caused by:

A
Streptococcus bacteria
B
Rhinovirus
C
Influenza virus
D
E. coli
Question 192 Easy

Which of these is a bacterial infection?

A
Influenza
B
Malaria
C
Tetanus
D
Dengue
Question 193 Easy

The 'flu shot' protects against:

A
Bacterial pneumonia
B
Influenza virus
C
HIV
D
Malaria
Question 194 Easy

Which of these is a parasitic disease?

A
Asthma
B
Giardiasis
C
Diabetes
D
Osteoporosis
Question 195 Medium

The 'incubation period' refers to the time between:

A
Infection and symptoms
B
Vaccination and immunity
C
Birth and disease
D
Exposure and recovery
Question 196 Easy

Which of these is NOT a component of blood?

A
Plasma
B
Hemoglobin
C
Melanin
D
Platelets
Question 197 Medium

The 'antigen' is:

A
An immune cell
B
A pathogen part
C
A vaccine
D
A antibiotic
Question 198 Easy

Which of these is a zoonotic disease?

A
Rabies
B
Diabetes
C
Osteoporosis
D
Asthma
Question 199 Easy

The 'WHO' is responsible for:

A
Local healthcare
B
Global health policies
C
National vaccination
D
School hygiene
Question 200 Easy

Which of these is a non-communicable disease?

A
Tuberculosis
B
Diabetes
C
Cholera
D
Malaria
Showing 191-200 of 2100 questions

Quick Stats

Total Questions 10900
easy 5797
medium 2983
hard 2120

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Did You Know?

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Regular practice with MCQs can improve your test-taking speed and accuracy by up to 40%.

Active Recall

MCQs engage active recall, which is 50% more effective for long-term memory than passive reading.