Explanation

2nd Hijri Events

·         Regular calls for prayer.

·         Change direction of prayer from Jerusalem to the Kabah

·         Fasting made compulsory.

·         Introduction of zakat.

·         Hazrat Fatima Marries Hazrat Ali.

·         Death of Hazrat Ruqayya.

·         Battle of Badr took place.

*     Salat e Jumma was made compulsory in Madina

Explanation

Chlorophyll is a green pigment found in the chloroplasts of plant cells and is essential for photosynthesis

The process by which plants convert light energy into chemical energy to produce sugars from carbon dioxide and water.

Chlorophyll absorbs light energy, particularly in the blue and red regions of the visible spectrum,

While reflecting green light, giving leaves their characteristic green color.

This absorption of light energy by chlorophyll initiates the process of photosynthesis, allowing plants to produce their own food.

Explanation

RAM stands for Random Access Memory.

Explanation

An exclamatory sentence makes a statement that conveys strong emotion or excitement. 

Explanation

The earth experiences day and night is the correct answer.

Explanation

Tabulation is the presentation of figures from an investigation in a table which consists of rows and columns of cells, or spaces, each of which provides one unit of information.

Explanation

On 5 May 2020, Chinese and Indian troops engaged in skirmishes 

Date on 5 May 2020 – 20 January 2021 (8 months, 2 weeks and 1 day)

Location: Line of Actual Control (LAC), Sino-Indian border

Result: 2,000 sq km of Indian territory lost to China since June 2020.

Explanation

Semiconductor memory is a digital electronic semiconductor device used for digital data storage, such as computer memory.

There are mainly two types of semiconductor memory:

1. random-access memory (RAM) 
2. read-only memory (ROM).
   

Explanation

Tea is an aromatic beverage commonly prepared by pouring hot or boiling water over cured leaves .

Tea leaf is used for making tea but we can use other plants too .

Explanation

Forbes top 10 power list: China's President Xi ranked No 1, Modi at No 9, German Chancellor Angela Merkel is the only woman in the Forbes power list 2021.