Which nucleotide could be inserted as a mutation in the sequence a—g—a—t—g—c—g—a—g—t—t—a—c—g—g? a. adrenal b. cytosine c. grautine d. thyme

humans are now responsible for causing changes in the environment that hurt animals and plant species. we take up more space on earth for our homes and cities. we pollute habitats. human activity often changes or destroys the habitats that plants and animals need to survive.

here is the answer

water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. weathering is the breaking down or dissolving of rocks and minerals on earths surface. once a rock has been broken down, a process called erosion transports the bits of rock and minerals away.