samahad Asked: September 2023 6392 people are visiting a rainforest if they arrive by train coaches that carry 50 people each how many coaches are needed to
samahad Asked: December 2022 calculate the amount of oxygen reduced to burn 120 kg of carbon completely
samahad Asked: December 2022 an object is placed at distance of 40 cm in concave lens with focal length of 20 cm write the characteristics and where