Questions

National Science Centre is located at New Delhi.

Air pollutants are solid particles, gases, and liquid droplets in the air that can adversely affect ecosystems and the health of humans.

Major ambient air pollutants include toxic metals, polycyclic aromatic hydrocarbons, benzene, particulate matter (PM), nitrogen oxides, sulfur oxides, carbon monoxide, and ozone. Power plants, factories, and vehicle and air traffic are the most important anthropogenic sources of air pollution.

In addition, natural sources such as wildfires and volcanic activity contribute to ambient air pollution.

The Suez Canal in Egypt, is a 101 mile long canal that connects the Mediterranean Sea with the Gulf of Suez, a northern branch of the Red Sea. It was built in 1869 by Ferdinand de Lesseps.

Salinity is often high in enclosed seas, this is due to high temperature, rapid evaparation and little inflow of fresh water.

The term panda bond refers to an indenture issued in China, in Chinese renminbi, by a foreign bank or corporation. The Pakistan cabinet approved the issuance of the maiden renminbi-denominated 'Panda Bonds' during its meeting presided over by Prime Minister.

Nucleoli are present during Interphase.

Chromosomes become visible during Prophase.

Centromeres divide and sister chromatids become full-fledged chromosomes during Anaphase.

Spindle fibers attach to kinetochores during Prometaphase.