Explanation

A meteorite is a small solid rock that survives its passage through the Earth's atmosphere and lands on the surface.

It differs from a meteoroid (before entering the atmosphere) and a meteor (which burns up in the atmosphere).

Explanation

A teacher should be a researcher to stay updated with new knowledge and teaching methods.

A teacher should be a psychologist to understand students' behavior and learning needs effectively.

Explanation

Explanation

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

Explanation

Epiphytes grow on large trees to access sunlight but do not harm the host tree or take nutrients from it.

This is an example of commensalism, where one organism benefits and the other is unaffected.

Explanation

Given:

∪ = {1, 2, 3, ..., 15}

A = {2, 4, 6, ..., 14}

B = {1, 3, 5, ..., 15}

A' = ∪ - A = {1, 3, 5, ..., 15} = B

B' = ∪ - B = {2, 4, 6, ..., 14} = A

A' ∪ B' = B ∪ A = ∪ (since B and A are complementary sets that together form ∪)