Explanation

The caste system in the Indian subcontinent was first established by the Aryans, who arrived in the region around 1500 BCE.

They created a social hierarchy with four varnas (classes):

1. Brahmins (priests and scholars)
2. Kshatriyas (warriors and rulers)
3. Vaishyas (merchants and traders)
4. Shudras (labourers and servants)

Explanation

The correct sentence is: "Bill hasn’t finished his work, but we have."

This uses the present perfect tense to show contrast and completion of work by "we."

Explanation

Since the population growth is exponential, the population P can be modeled as:

P = P0 x (1 + r)^t

where P0 is the initial population, r is the growth rate, and t is the time (in years).

Given that the initial population P0 = 20 and the population grew to 25 after 2 years, we can find the growth rate r:

25 = 20 x (1 + r)^2

Dividing both sides by 20:

1.25 = (1 + r)^2

Taking the square root:

1 + r = √1.25 = 1.125

Subtracting 1 from both sides:

r = 0.125

Now we can write the exponential growth function:

P = 20 x (1 + 0.125)^t

P = 20 x (1.25)^t

Explanation

Iqbal qualified for a scholarship from Trinity College in Cambridge and obtained Bachelor of Arts in 1906, and in the same year he was called to the bar as a barrister from Lincoln's Inn.

In 1907, Iqbal moved to Germany to study doctorate and earned PhD degree from the Ludwig Maximilian University, Munich in 1908.

Explanation

مولانا صلاح الدین احمد کا نام ادبی دنیا ادبی رسالے کے ساتھ جڑا ہوا ہے۔

Explanation

The correct preposition to use with direction is "to," as it indicates movement toward a specific location.

Hence, "He went to the direction of the post office" is correct.

وہ ڈاک خانے کی سمت چلا گیا۔

Explanation

Shah Abdul Latif Bhittai, a renowned Sindhi Sufi poet, lived in the 18th century (1689–1752).

His poetry, particularly in Shah Jo Risalo, reflects deep spirituality and the culture of Sindh.

Shah Abdul Latif Bhittai, was a Sindhi Sufi mystic and poet from Pakistan.

Greatest poet of the Sindhi language. 

Born: November 18, 1689, Hala

Died: December 21, 1752, Bhit Shah

Place of burial: Bhit Shah

Nationality: Indian, Pakistani

Explanation

Pakistan gained independence from British colonial rule on August 14, 1947, but it remained a British dominion until March 23, 1956.

This means that Pakistan was a self-governing state, but still recognized the British monarch (King George VI and later Queen Elizabeth II) as its head of state.

Explanation

A buffer is a temporary storage area that holds data while it is being transferred between two devices or processed by the CPU.

It helps manage differences in data processing speeds between the CPU and peripheral devices, ensuring smooth data flow.

Explanation

Sakhalin was claimed by both Russia and Japan over the course of the 19th and 20th centuries.

These disputes sometimes involved military conflict and divisions of the island between the two powers.

In 1875, Japan ceded its claims to Russia in exchange for the northern Kuril Islands.