Identify whather the following are elements, compounds and mixture. 1. rusting of iron.
2. zinc.
3. commkn salt.
4. gold.
5. smoke.
6. water.

Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?

Which of the following describes a situation where competition between producers exists

How can you write e method for the experiment of separating sand from water by filtration process? 1-materials 2-steps 3-conclusion also the same for the separating process of water and salt by filtration or distillation. quick because i need to finish my hw