Questions

The ability of two or more substances to combine to form other substances is called Reactivity.

C3 plants are plants that undergo C3 photosynthesis, which means that they undergo the Calvin cycle (converting carbon dioxide into energy) in their chloroplasts and typically keep their stomata open during the day. These are the most common types of plants.

In C3 plants the conservation of water promotes Photorespiration.

Permanent hardness of water may be removed by the addition of Sodium Carbonate.

In 1960s AT&T introduces its Data phone, the firstcommercial modem. The first commercial modem made for converting digital computer data at analog signalsfor transmission across long distance networks

Mercury was the remedy of choice for syphilis in Protestant Europe. Until the early 20th century, the primary treatment for syphilis was mercury, in the form of calomel, ointments, steam baths, pills, and other concoctions.

Mercury was already being used in Western Europe to treat skin diseases.

The Mesoamerican leader Pakal, The great was the king of a Maya city-state in the history.