Questions

ICMP is Internet Control Message Protocol, a network layer protocol of the TCP/IP suite used by hosts and gateways to send notification of datagram problems back to the sender. It uses the echo test / reply to test whether a destination is reachable and responding. It also handles both control and error messages.

Biological Control: This method is very effective. One pest is destroyed by another organism. For example the aphids are killed by lady beetle. The prickly pear is eradicted by cochineal insect. Here the advantage is, one does not use harmful chemicals which may get into the host plants.

The areas are generally divided into three groups:

* street fashion (mass-manufactured high fashion);

*ready-to-wear (small collections);

* haute couture, where unique cat-walk garments are created mostly without practical considerations.

Don’t try to impress employees with what you are not. If you are an expert in high street fashion – you will be appreciated and find plenty of work.

Kepler's laws of planetary motion are three scientific laws describing the motion of planets around the Sun.

• Kepler’s three laws of planetary motion can be stated as follows:

(1) All planets move about the Sun in elliptical orbits, having the Sun as one of the foci.

(2) A radius vector joining any planet to the Sun sweeps out equal areas in equal lengths of time.

(3) The squares of the sidereal periods (of revolution) of the planets are directly proportional to the cubes of their mean distances from the Sun.

According to a Report by analyst firm Canalys, India has become the second largest smartphone market in the world.

Iran is an important oil-producing region in the Middle East. Abadan on the Abadan island has one of the largest refineries in the world.