Explanation

The first process in a petroleum refinery is Distillation, also known as Fractional Distillation.

This process separates crude oil into various fractions or types of hydrocarbons, based on their boiling points and molecular weights.

The processes in a petroleum refinery:

1. Cracking
2. Reforming
3. Isomerization
4. Hydrotreating
5. Hydrocracking
6. Catalytic Cracking
7. Alkylation

Explanation

CoronaVac is an inactivated virus COVID-19 vaccine developed by Sinovac Biotech, a Chinese biopharmaceutical company based in Beijing, China.

It was approved for emergency use in China in February 2021.

It has since been used in several countries, including Brazil, Chile, and Indonesia.

Explanation

1. 10^0.48 = x

2. 10^0.70 = y

3. x^z = y^2

We can rewrite the third equation as:

(10^0.48)^z = (10^0.70)^2

Using the power rule of exponents:

10^0.48z = 10^1.40

Since the bases are the same (both are 10), we can equate the exponents:

0.48z = 1.40

Now, divide both sides by 0.48:

z ≈ 1.40 / 0.48

z ≈ 2.92

So, the value of z is closest to 2.9.

Explanation

Lactic acid is used in the fermentation process of food, particularly in the production of yogurt, cheese, sauerkraut, and pickles.

It is produced by the action of lactic acid bacteria, such as Lactobacillus.

It converts sugars into lactic acid, preserving the food and giving it a sour flavor.

Explanation

A referendum on allowing Pervez Musharraf to continue as President for five years was held in Pakistan on April 30, 2002.

This referendum was part of Musharraf's efforts to legitimize his rule after he seized power in a military coup in October 1999.

The Supreme Court of Pakistan confirmed the legitimacy of this referendum.

Explanation

In 2020, the UAE became the first country in the Middle East and North Africa to introduce equal pay for men and women.

The UAE's gender equality law ensures that women have the same rights as men to receive equal pay for work of equal value.

Explanation

The Kerry-Lugar Bill, also called the Enhanced Partnership with Pakistan Act of 2009, authorized non-military aid to Pakistan for 2010-2014.

Signed by President Obama on October 15, 2009.

It aimed to strengthen U.S.-Pakistan ties and allocated $1.5 billion annually.

Explanation

The sentence should read, "He have resigned from job and have finished the task."

However, note that "He" typically pairs with "has," but this phrasing assumes casual usage.

Explanation

The 2021 Asian Women's Volleyball Championship was held in Sendai, Japan, from August 29 to September 5, 2021.

Japan won the tournament, defeating Thailand in the final.

Explanation

تیل دیکھو تیل کی دھار دیکھو۔