k (V) the correct statements and cross (x) the wrong ones. Air is a compound formed by different substances. We use different kinds of mixture in our daily life. The mixture of salt and water is a heterogenous mixture. A mixture of carbon dioxide and water forms soda water. Muddy water is an example of a heterogenous mixture,​

25) a student takes four samples of a white crystalline solid and places each in a well plate. on top of each sample, she carefully places 20 drops of clear mystery liquids a, b, c and d. her results for each well are: liquid a: the solid dissolves quickly. liquid b: the solid appears unchanged. liquid c: a brownish colored liquid is produced. liquid d: fizzing occurs and the well becomes warmer. in which well does a physical change occur?

Plz ! cattle ranchers and dairy farmers rarely allow all of their animals to reproduce instead they practice selective breeding and only encourage the reproduction of animals with specific features. which of the following cows would a dairy farm most likely choose to reproduce? a. a cow that makes a lot of milk. b. a cow that can run quickly. c. a cow with a think, soft fur. d. a cow with large, strong hooves.

Describe how a non-resistant staphylococcus aureus bacterium can produce a bacterium that is resistant to methicillin