Explanation

 The world's first public airline was DELAG (Deutsche Luftschiffahrts-Aktiengesellschaft),

It was founded on November 16, 1909, with government support

Its headquarters is in Frankfurt

DELAG, meaning "German Airship Navigation Company,"

Explanation

Energy is measured in units of kilocalories

One kilocalorie  is equal to 4.18 kilojoules.

The amount of energy a food contains per gram is known as its energy density,

So we can describe fat as more energy-dense than protein or carbohydrate.

Explanation

• A Periscope is an optical instrument used to observe objects that are not in direct line of sight.
• Such as monitoring the surface of the water from a submarine.

Explanation

The Thirteenth East Asia Summit was held at the Suntec Singapore Convention from 11-15 November 2018.

The Exhibition Centre in Central Area, Singapore on November 14–15, 2018.

***

Explanation

The 2018 Commonwealth Games, officially known as the XXI Commonwealth Games 

Location: The games were held on the Gold Coast, which is a major tourist city in Queensland, Australia.

Dates: The event took place from April 4 to April 15, 2018.

Sports: The 2018 Games featured 18 sports and 7 para-sports.

Participants: More than 4,400 athletes from 71 Commonwealth nations participated.

Medal Count: Australia topped the medal table with 80 gold medals, followed by England and India.

Explanation

Explanation

Two or more forces acting on the same point at the same. time are called concurrent forces.

While

A concurrent coplanar force system is a system of two or more forces whose lines of action intersect at a common point.

Explanation

• A lake starts freezing because of the cold atmosphere. It will first freeze At the top surface
• ***
• concept:
• when the water freezes to ice, the ice becomes significantly less dense than the water and continues to float on the lake's surface.
• Below 4° Celsius, water becomes less dense as it gets colder, causing water to freeze to float to the top.
  
  

Explanation

"Who is the prettiest girl in the picture?"

"The prettiest" is the superlative form of "pretty".

When comparing one person out of a group, we use the superlative form of the adjective

"The" is used before superlative adjectives.

Explanation

Select the objects you want to align.

Press Shift to select multiple objects.

Select Picture format > Align and select how you want to align them:

Align Left, Align Center, or Align Right. Align the Top, Align the Middle, or Align the Bottom. Distribute Horizontally or Distribute Vertically.