Who has padlet?and wants to talk?

[ou.01jthe greatest speed with which any physical object moves is 300,000 km/soundsec. which of the following has a speed of 300,000 km/sec? a.light in water b.light in vacuum c.sound in air. d. sound in water

Asap! ! ! ! true or false the gobi desert, the largest desert in asia. covers parts of northern china and southern russia

What is the amount of organic matter in all living organisms in a habitat called?