Can someon eplz help me and plz be good

How can a give a full method for the experiment of separating sand from water by filtration? 1-materials 2-steps 3-conclusion also for water and salt separated by the evaporation or distillation process

Na chemical reaction, activation energy increases the of the reactants. this outcome causes the particles to collide, which results in the of new products.

Which fossil fuel is mainly used for heating and cooking? a. electricity b. coal c. petroleum d. natural gas