Explanation

Limestone is a Sedimentary Rock, Stratified Rock, Aqueous Rock.

Limestone consists of calcium carbonate,

Which has the chemical formula CaCO3.

Calcium carbonate is a chemical compound

It is a common substance found in rocks as the minerals calcite

RK11-12-22

Explanation

The rate of flow of charge at a certain point is called the Electric Current.

- Formula: I = Q / t, where  

  - I = current (in amperes),  

  - Q = charge (in coulombs),  

  - t = time (in seconds).  

- Measured in Amperes (A).  

- Direction of current is taken as the direction of flow of positive charges (conventional current).

Explanation

 Canada's withdrawal from the Kyoto Protocol.

This action became effective for Canada on 15 December 2012.

***

The Kyoto Protocol was an international treaty that talked about Pollution and aimed to reduce the emission of gases that contribute to global warming

Kyoto Protocol on International Climate Change signed: December 1997

The Kyoto Protocol was signed in Kyoto, Japan

Come into Force on 16 Feb 2005

The Kyoto Protocol was an international treaty that extended the 1992 United Nations Framework

Parties:

the European Union

Cook Islands

Niue

all UN member states except Andorra, Canada, South Sudan, and the United States as of 2022

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Languages:

Arabic

Mandarin

English

French

Russian

Spanish

ND26-9-2023

Explanation

In a reversible process, the entropy of the system remains constant. 

 A key characteristic of a reversible process is that it can be reversed without leaving any net change in the system or its surroundings, including the entropy. 

Explanation

Explanation

A gas being cooled is a system where entropy is decreasing. 

When a gas is cooled, its molecules slow down and become more ordered, leading to a decrease in entropy. 

Explanation

  - Percent means “per hundred”.  

  - 1.5% of 100 = (1.5/100) × 100 = 1.5

Explanation

MIT stands for Massachusetts Institute of Technology.  

It is a private research university 

Located in Cambridge, Massachusetts, USA.  

Motto: Mens et Manus (Latin)

Motto in English: "Mind and Hand"

Established: April 10, 1861

Founder: William Barton Rogers

Explanation

Tannic acid is found in plant materials

It is a type of tannin (a polyphenol)

Beverages: Tea, coffee, and wine are common sources. 

Fruits: Berries like cranberries and blueberries, as well as grapes, apricots, and peaches. 

Nuts: Some acorns, hazelnuts, walnuts, and almonds contain tannins. 

Other Foods: Legumes, chocolate, and even spices like cinnamon can contain tannins. 

Explanation

. Catalyst to convert SO₂ to SO₃ is Vanadium Pentoxide (V₂O₅)  

  - Used in the Contact Process for manufacturing sulfuric acid.  

  - Speeds up the reaction: 2SO₂ + O₂ → 2SO₃