Questions

The ________ curve represents the demand of all consumers in the market taken together at different levels of the price of the good.

In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best
expresses the same sentence in Indirect/Direct speech.
“Bring me my spectacles,” said grandfather to me.

Which among the following is NOT same as reproduction?

What temperature does bacteria grow quickest at

Zika virus which damages the brain of the foetus is

Which hormone is released from the testes?

Which of the following is a good source of Vitamin A?

Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.

The first working steam­ powered vehicle was designed and most likely built by Ferdinand Verbies, a Flemish member of a Jesuit mission in China around 1672. It was a 65 cm long scale­ model toy for the Chinese Emperor, that was unable to carry a driver or a passenger. It is not known if Verbiest's model was ever built. Nicolas- Joseph Cugnot is widely credited with building the first full­ scale, self ­propelled mechanical vehicle or automobile in about 1769; he also created a steam­ powered tricycle. He constructed two steam tractors for the French Army, one of which is preserved in the French National Conservatory of Arts and Crafts. His inventions were however handicapped by problems of water supply and maintaining steam pressure. In 1801, Richard Trevithick built and demonstrated his Puffing Devil road locomotive, believed by many to be the first demonstration of a steam ­powered road vehicle. It was unable to maintain sufficient steam pressure for long periods. Sentiment against steam ­powered road vehicles led to the Locomotive Acts of 1865. In 1807 Nicephore Niepce and his brother Claude probably created the world's first internal combustion engine which they called Pyreolophore.

The Pyreolophore was ?