Why do scientists use models? a. models make some things easier to understand. b. measurements can be made only on models. c. models scientists visualize things they can’t see. d. models are perfectly accurate representations of objects. e. scientists can analyze models to make predictions.

Option (c) is the correct answer.

Explanation:

A model is a mode of representation with the help of which we can make things easy to visualize for own self and for others also.

For example, a model of boat structure of glucose will help to visualize how the atoms are bonding together and repelling due to difference in their size.

Hence, scientists also get benefited with the help of models as they also get to know how they need to explain or correct things in their research.

Thus, we can conclude that scientists use models because Models help scientists visualize things they can’t see.

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.