Salt water
sand and water
vinegar
this next one is for CEMENT
Concrete is a heterogeneous<span> (composite) material consisting of </span>cement<span>, water, fine aggregates and coarse aggregates. ... Otherwise it is a </span>heterogeneous<span> material.</span>Cement<span> may be called a </span>homogeneous<span> material. But concrete is not.</span>
A) earthquakes cause seismic waves.
System that removes solid and liquid wastes is called excretory system.
Hope this helps~
Answer: Definition and models Contamination alludes to the presence of a substance or substances in the climate that is unsafe or harmful. The substances or poisons might be hurtful to human wellbeing, different creatures, and plants. When something hurtful enters the climate at a quicker rate than it tends to be scattered, there is contamination. or Contamination is that the presentation of hurtful materials into the climate. These unsafe materials are called toxins. Poisons might be normal, as volcanic debris. they'll even be made by human activity, similar to waste or overflow created by industrial facilities. Contaminations harm the norm of air, water, and land. Explanation: Both describe what pollution means I hope this helps you
