Consider the following statements about Kyoto Protocol which held in Japan in December 1997?

(A) Involved pledges and commitments from different countries to mitigate climate change caused by greenhouse gases and ozone-depleting substances (ODS).

(B) Required all countries to reduce greenhouse gas emissions by 5% below 1990 levels by 2008–2012.

(C) High-fluorinated hydrocarbons (HFCs) are transitional replacements for chlorofluorocarbons (CFCs).

(D) Definite road maps were prepared separately for developing and developed nations to reduce emissions of CFCs and other ozone-depleting substances (ODS).

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Which among the following is a super computer of America?

The credit of inventing soap by using mustard oil and some alkalies goes to which of the following scientist?

ISRO recently launched the NVS-01 mission. It is a-

Which of the following are correct, with reference to Indian satellites and their launchers:

(A) All the INSAT series of satellites were launched abroad.

(B) PSLVs were used to launch IRS-series of satellites.

(C) India used the indigenously built cryogenic engines for the first time for powering the third stage of GSLV

(D) GSAT, launched in the year 2001, has payloads to demonstrate digital broadcast and internet services.

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The alloy is-

(A) mixture of two or more metals

(B) a mixture of a metal and a non-metal

(C) can not be separated into their components by physical methods

(D) brass is a mixture of zinc and tin

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Reactions involve the gain or loss of oxygen or hydrogen by substances.

Statement A: Oxidation is the loss of oxygen and gain of hydrogen.

Statement B: Reduction is the loss of hydrogen and gain of oxygen.