How much hours should i spend on my syallabus class 10? if i not study any chapter still. Need serious answer​

What is the difference between an igneous, sedimentary and metamorphic rock

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

State officials are considering constructing a road through a forested wilderness area. this action will likely affect the forest ecosystem in various ways. part a: predict how the construction of a road could negatively affect plants and animals in that ecosystem. (3 points) part b: describe one way that the construction of a road could have a positive impact of the forest ecosystem. (1 point)