Correct Answer: D. 14°C

Correct Answer: C. the water surface has the effect of an elastic thin skin

Correct Answer: A. have a great reward in heaven

Correct Answer: B) manufacturing

Explanation

Extractive refers to the process of extracting or obtaining raw materials from the earth or natural resources. This can include activities such as mining, drilling, or harvesting.

Constructive refers to activities that involve building or construction, such as the creation of buildings, infrastructure, or structures.

Processing refers to the act of changing the form or condition of something, usually through a series of steps or treatments. This can include activities such as refining, purifying, or treating raw materials or substances.

In this question, the correct answer is manufacturing because it specifically relates to the process of turning processed raw materials into consumer and industrial goods. This involves the use of machinery and labor to transform these materials into finished products that can be sold or used.

Correct Answer: C. on a platform in front of the castle

Correct Answer: (a) Expeditious

Explanation

a) Surface tension is defined as a force per unit length perpendicular to any line on the surface of the liquid OR Property of a liquid which makes the surface of liquid behave like an elastic skin.

(b) Surface tension = F/21

=7.3 x 1\(^{-2}\) x 2 x 0.04 = 5.8 x 10\(^{-3}\)N

Correct Answer: C. An ionic compound, YZ is formed

Correct Answer: C. Togo

Correct Answer: A) WorldWideWeb

Explanation

The correct answer is Option A: WorldWideWeb. This was the very first web browser ever created, developed by Tim Berners-Lee in 1990. It was initially only available on the NeXTSTEP operating system.

Netscape Navigator was created in 1994 and was the most popular web browser in the world for a period of time. Internet Explorer was released in 1995 by Microsoft and became the most widely used browser in the world in the early 2000s. Safari was developed by Apple and released in 2003, while Chrome was developed by Google and released in 2008.

It is important to note that while WorldWideWeb was the first web browser, it was not widely used and did not have a major impact on the development of the internet. Instead, it was the later browsers such as Netscape Navigator and Internet Explorer that played a larger role in popularizing the internet and making it accessible to a wider audience.

In summary, the first web browser ever created was WorldWideWeb, developed by Tim Berners-Lee in 1990. However, it was the later browsers such as Netscape Navigator and Internet Explorer that had a larger impact on the development and popularization of the internet.