Explanation

• The human body contains about 65% oxygen by mass.
• Oxygen is the most abundant element in the human body.
• It is mainly present in water (H₂O) and organic compounds.
• It is essential for respiration and energy production.

Additional information:

• Carbon: ~18%
• Hydrogen: ~10%
• Nitrogen: ~3%
• Other elements: ~4% (calcium, phosphorus, etc.)

Last verified 09-06-2026

Explanation

• The causative organism of malaria (Plasmodium) was discovered by Charles Louis Alphonse Laveran in 1880.
• He identified the parasite in the blood of infected patients.
• This discovery proved that malaria is caused by a protozoan parasite.

Additional information:

• Ronald Ross discovered that malaria spreads through female Anopheles mosquito (1897).

Last verified on 09-06-2026

Explanation

Formula: °F = (9/5)°C + 32  

° F = (9/5)(50) + 32 = 90 + 32 = 122°F

So 50°C feels pretty hot - about 122°F.

Last verified on 09-06-2026

Explanation

Hydrogen gas is H₂, molar mass ≈ 2.016 g/mol  

Moles = mass / molar mass  

= 8.064 g / 2.016 g/mol = 4.0 mol

So there are 4 moles of H₂ molecules.

Last verified on 09-06-2026

Explanation

• The most effective way is to use positive reinforcement and calm handling of the situation.
• It helps in improving student behavior without humiliation or conflict.
• Teacher should guide the student instead of punishment or ignoring.
• Positive behavior is encouraged through praise and motivation.
• It creates a healthy and controlled classroom environment.

Last verified on 09-06-2026

Explanation

• Educational measurement deals with the numerical profile of student performance.
• It focuses on assigning numbers, scores, and grades to learning outcomes.
• It helps in quantifying students’ achievement levels.
• It is used to compare and evaluate performance objectively.

Last verified on 09-06-2026

Explanation

• Absolute marking exists in the form of GPA or direct marks.
• It evaluates students based on fixed criteria, not comparison with others.
• Each student is judged according to their own performance level.
• It is different from relative grading (ranking system).

Last verified on 09-06-2026

Explanation

• Team teaching promotes better planning and effective instruction.
• It involves two or more teachers working together in one classroom.
• Teachers share planning, teaching, and evaluation tasks.
• It improves teaching quality and student understanding.
• It reduces workload on a single teacher.

Last verified on 09-06-2026

Explanation

• The discussion method is mostly student-centered.
• It encourages active participation of students in learning.
• Students share ideas, ask questions, and express opinions.
• Teacher acts as a facilitator, not a lecturer.
• It develops critical thinking and communication skills.

Last verified on 09-06-2026

Explanation

• Special education is planned for students with special needs.
• It focuses on learners with physical, mental, or learning disabilities.
• The goal is to provide equal learning opportunities.
• Teaching methods are modified according to student needs.
• It ensures inclusive and supportive education.

Last verified on 09-06-2026