What is the layer of air surrounding earth

Which descriptions refer to fog? check all that apply. burns off when it gets dark forms at or near the ground extends up to 10 miles into the sky found in areas near bodies of water forms when the ground warms at night after a cool, dry day

Answer this asap. why did the americans go to china? a. trading b. exploration c. land d. live stock

Put these ecosystems in order of least biodiversity to most biodiversity 1. mediterranean forest 2. indonesian rain forest 3. arctic ocean