Which sentence contains a pronoun with an unclear, a missing, or a confusing antecedent?

It is important to prepare both your mind and body to adequately prepare for success the day of the act exam. in a short paragraph describe some of the ways you can prepare your mind and body the day of the exam. feel free to include additional preparation tactics beyond what is included in this lesson. pz

Which statements about the two fossil images are correct? 1. cave bears are ancestors of plateosaurus. 2. plateosaurus were present on earth before ostracoderms. 3. ostracoderms were the first to die. 4. plateosaurus died after the ostracoderms. 5. cave bears are the oldest fossils.

Land is to arable ; river is a, navigable b, shallow c, presumsor d, water