Explanation

The subject "dog" is singular and the action is habitual (every day).

For singular subjects in present tense, we use verb + s → barks.

Explanation

 The main purpose of white blood cells, also known as leukocytes, 

  They protect the body from infection and disease by fighting off harmful pathogens and other foreign substances. 

Explanation

Hazrat Abu Bakr (RA) freed Hazrat Bilal (RA) from slavery.

Bilal (RA) was a slave of Umayyah ibn Khalaf, a harsh master who tortured Bilal for embracing Islam.

Abu Bakr (RA) purchased and freed Bilal, who later became a prominent companion of the Prophet Muhammad (SAW) and a renowned mu'adhin (caller to prayer).

Explanation

 The capital of the Xinjiang Uyghur Autonomous Region of China is Ürümqi. 

Capital: Urumqi

Region: Xinjiang Uyghur Autonomous Region

Location: Northwestern China

Other Names: Also known as Urumqi

Explanation

• Sum of two numbers: $-3 + (-5) = -8$
  

• Product: $(-3) times (-5) = +15$
  

Let’s now write an algebraic expression where the sum is $-8$and the product is $+15$.

This is a quadratic expression of the form:

$$x^2 + 8x + 15$$

Explanation

The common difference is $-3$, so the sequence becomes:
$18, 15, 12, 9, 6, 3$
The 3rd mean is the 4th term: 9.

Explanation

Media regulatory authorities are responsible for content regulation, licensing, and ensuring ethical standards, but a blanket ban on all international films is not a typical or lawful function.

Explanation

Let's break down the problem step by step:

Step 1: Express the initial number of boys and girls using the given ratio

Let the number of boys be 11x and the number of girls be 13x.

Step 2: Calculate the new number of boys and girls after 4 boys and 8 girls join the class

New number of boys = 11x + 4

New number of girls = 13x + 8

Step 3: Set up the equation based on the new ratio

Given the new ratio is 4:5, we can write the equation as:

(11x + 4) / (13x + 8) = 4/5

Step 4: Solve the equation

Cross-multiplying gives us:

5(11x + 4) = 4(13x + 8)

55x + 20 = 52x + 32

55x - 52x = 32 - 20

3x = 12

x = 4

Step 5: Calculate the strength of the class

Strength of the class = Initial number of boys + Initial number of girls + New boys + New girls

= 11x + 13x + 4 + 8

= 24x + 12

= 24*4 + 12

= 96 + 12

= 108

Explanation

 The eustachian tube is not part of the inner ear; the inner ear consists of the cochlea, semicircular canals, and the vestibule (which includes the utricle and saccule). 

Explanation

The United States and Vietnam established a "Comprehensive Strategic Partnership" in 2023

The USA and Vietnam have a long history, including a Bilateral Trade Agreement (BTA) and a Comprehensive Strategic Partnership.

The BTA, signed in 2000 and implemented in 2001