How can fossil fuels hurt our environment?

What is the answer for the complicated molecules that make up living things usually contain carbon. why is carbon so important in these molecules?

Many plants can reproduce asexually. which of these is an example of asexual reproduction in a plant? a. pine cones forming on a tree b. cross-pollination in a tomato c. roots sprouting from a potato d. night-blooming jasmine flowers

What is the cause hearing loss in human being