Paper and pulp manufacturing are forest-based industries. The basic raw material for the pulp and paper industry isthe wood. Softwood of the temperate forests is especially suitable for making pulp and paper.
Sometimes Venus appears in the eastern sky before sunrise. Sometimes it appears in the western sky just after sunset. Therefore it is often called a morning or an evening star, although it is not a star.
Ultrasound refers to a sound wave with a frequency greater than the upper limit of human hearing, which is generally over 20 kHz. In general, humans can hear sounds with a frequency between 20 Hz and 20 kHz.
EXAMIANS