CAN SOME PLZ HELP I REALY NEED THIS PLZ What are all the answers in edgeunity science first unit test.
IF U ANSWER RIGHT BRAINLEST WILL BE GIVEN

Earth's atmosphere is composed of mostly two gases. name the two gases that make up the majority of the atmosphere and use the pie chart to tell the percentages of each.

The brightest star in the night sky in the northern hemisphere is sirius. its distance from earth is estimated to be 8.7 light years. a light year is the distance light travels in one year. light travels at a speed of 3.00 × 108 m/s. calculate the distance from earth to sirius in miles. (1 mi = 5280 ft) g

What is the role of the water cycle in maintaining freshwater levels in lake and rivers?