Questions

A Mixture is a material made up of two or more different substances which are mixed.

Mixtures can be either homogeneous or heterogeneous.

* A homogeneous mixture is a type of mixture in which the composition is uniform and every part of the solution has the same properties.

* A heterogeneous mixture is a type of mixture in which the components can be seen, as there are two or more phases present.

Air is a homogeneous mixture of the gaseous substances nitrogen, oxygen, and smaller amounts of other substances.

Protons carry a positive electrical charge, electrons carry a negative electrical charge and neutrons carry no electrical charge at all. The protons and neutrons cluster together in the central part of the atom, called the nucleus, and the electrons 'orbit' the nucleus.

Full-service airline Jet Airways has announced a partnership with ride-hailing app Uber to book airport cabs through the Jet Airways app itself. The airline will partner Uber and facilitate travel from the airport once a passenger has booked a ticket on the Jet Airways app.

Mitochondria are present in both plant and animal cells.

The Institute of Chartered Accountants of India (ICAI) elected Nilesh Shivji Vikamsey as president and Naveen N D Gupta as vice-president. They have been elected for the year 2017-18. Vikamsey, who served as vice-president, has been a member of the ICAI since 1985. Gupta has been a chartered accountant for more than 20 years.

The myofibrils are composed of actin and myosin filaments, repeated in units called sarcomeres, which are the basic functional units of the skeletal muscle.