Explanation

Edward Thorndike emphasized that educational psychology should be based on scientific principles and should focus on the measurement of learning processes and outcomes.

He is known for his work on the theory of connectionism and his development of the law of effect, which influenced the study of behavior and learning.

Explanation

Soaps are alkaline.

It often contain basic substances like sodium hydroxide, which can irritate or burn the eyes.

These bases disrupt the eye's natural pH, causing a stinging or burning sensation.

Explanation

متلازم وہ الفاظ ہوتے ہیں جو ایک دوسرے کے لیے لازم و ملزوم ہوں، یعنی ایک کے بغیر دوسرا مکمل نہ ہو۔

مثال کے طور پر: "زندگی اور موت"، "روشنی اور اندھیرا" — یہ متلازم الفاظ ہیں۔

Explanation

The idiom "on the ball" means being quick to understand and react to things.

In this sentence, it refers to someone giving a sharp and accurate assessment.

Explanation

Given the equations:

1. 7x - 4y = 10

2. 2x + 3y = 65

Let's solve them using elimination or substitution. Multiplying equation 1 by 3 and equation 2 by 4 gives us a way to eliminate y:

1. 21x - 12y = 30

2. 8x + 12y = 260

Adding both equations:

29x = 290

x = 290 / 29

x = 10

Explanation

Frogs typically have 26 chromosomes in their body cells.

The number of chromosomes is species-specific and helps in maintaining genetic stability.

Explanation

The cerebrum is the largest and most developed part of the brain.

It is responsible for thinking, memory, and decision-making.

Humans have the largest cerebrum relative to body size, enabling advanced cognitive functions.

Explanation

Ancient Greek medicine believed that health depended on the balance of four bodily fluids or "humors": blood, phlegm, black bile, and yellow bile.

Imbalance in these humors was thought to cause disease.

Explanation

Benjamin Bloom introduced the concept of Levels of Abstraction in his Bloom's Taxonomy, classifying learning objectives from simple to complex.

These levels include: Knowledge, Comprehension, Application, Analysis, Synthesis, and Evaluation—each representing deeper cognitive processing.

Explanation

Let the younger sister's present age be x.

Fareeha's present age = x + 4

After 10 years:

Younger sister's age = x + 10

Fareeha's age = x + 4 + 10 = x + 14

Given:

x + 10 + x + 14 = 48

2x + 24 = 48

2x = 24

x = 12

Fareeha's present age = x + 4

= 12 + 4

= 16 years