Which two structures are not present in animal cells? 1. Cell Wall and Nucleus 2. Golgi Apparatus and Mitochondria 3.Cell Wall and Chloroplast 4. Endoplasmic Reticulum and Cytoplasm

Cell Wall and Chloroplast

Explanation:

Animal cells have a cell membrane, not a cell wall. Animal cells also have no chloroplast, as that is what gives plants their green colour and allows them to photosynthesize

one negative thing it that it can kill water animals. another negative thing is it can cause the destruction of ecosystem. one way water pollution can be reduced is to conserve energy.