Which of the following thesis statements are precise?

Where teachers are concerned, all that glitters is not gold.
The domesticated house cat requires intelligent care if it is to reach its life expectancy.
Most home repairs can be undertaken by the homeowner.
In high school standards of popularity vary quite frequently.
The phonemic system of Russian makes the language difficult to learn.

The following thesis statements are precise:

The domesticated house cat requires intelligent care if it is to reach its life expectancy.
Most home repairs can be undertaken by the homeowner.
The phonemic system of Russian makes the language difficult to learn.

The following thesis statements are precise:

1. The domesticated house cat requires intelligent care if it is to reach its life expectancy.
2. Most home repairs can be undertaken by the homeowner.
3. The phonemic system of Russian makes the language difficult to learn.

To determine which of the following thesis statements are precise, we need to understand what makes a thesis statement precise. A precise thesis statement clearly identifies the main idea or argument of the essay and does not contain vague or general statements. It should be specific and focused.

Let's analyze each of the thesis statements:

1. "Where teachers are concerned, all that glitters is not gold."
This thesis statement is not precise because it uses a common phrase ("all that glitters is not gold") that is not specific to the topic of teachers. It doesn't clearly state the main argument or idea of the essay.

2. "The domesticated house cat requires intelligent care if it is to reach its life expectancy."
This thesis statement is precise because it clearly identifies the main idea or argument of the essay, which is that domesticated house cats require intelligent care to reach their life expectancy. It is specific and focused on a particular topic.

3. "Most home repairs can be undertaken by the homeowner."
This thesis statement is precise because it clearly states the main idea or argument of the essay, which is that most home repairs can be undertaken by the homeowner. It is specific and focused on a particular topic.

4. "In high school, standards of popularity vary quite frequently."
This thesis statement is not precise because it contains a vague statement that is not specific to the topic. It doesn't clearly state the main argument or idea of the essay.

5. "The phonemic system of Russian makes the language difficult to learn."
This thesis statement is precise because it clearly identifies the main idea or argument of the essay, which is that the phonemic system of Russian makes the language difficult to learn. It is specific and focused on a particular topic.

Based on the analysis, the precise thesis statements are:
- The domesticated house cat requires intelligent care if it is to reach its life expectancy.
- Most home repairs can be undertaken by the homeowner.
- The phonemic system of Russian makes the language difficult to learn.