Question

the welfare of children as the heart of the issue; a solid lump of coal; adding ideas to the planning of the parade float; a coating of oil on top of the water; letting others do all the work to put on the school play; riding your bike instead of walking to school; a statement reacting to a dress code for your school; no reaction to the choice for class president; which color to paint the animal shelter as a minor decision; only one after - school activity you can join

word	example	non - example
comment
contribute
layer
core

Explanation:

To solve this, we analyze each word's meaning and match with examples/non - examples:

Word: alternative

• Meaning: A choice or option.
• Example: riding your bike instead of walking to school (offers an alternative way to get to school), only one after - school activity you can join (this is a non - example as there's no alternative, just one option? Wait, no. Wait, "riding your bike instead of walking" is an alternative. "only one after - school activity" is a non - example as there's no alternative. Wait, let's re - evaluate. "riding your bike instead of walking to school" is an example of an alternative (choosing bike over walking). "only one after - school activity you can join" is a non - example (no alternative).
• Example: riding your bike instead of walking to school
• Non - Example: only one after - school activity you can join

Word: comment

• Meaning: A statement of opinion or reaction.
• Example: a statement reacting to a dress code for your school (a comment on the dress code)
• Non - Example: no reaction to the choice for class president (no comment)

Word: contribute

• Meaning: To give or add (ideas, work, etc.).
• Example: adding ideas to the planning of the parade float (contributing ideas), letting others do all the work to put on the school play (non - example, not contributing)
• Example: adding ideas to the planning of the parade float
• Non - Example: letting others do all the work to put on the school play

Word: layer

• Meaning: A thin sheet or coating.
• Example: a coating of oil on top of the water (a layer of oil), a solid lump of coal (non - example, not a layer)
• Example: a coating of oil on top of the water
• Non - Example: a solid lump of coal

Word: core

• Meaning: The central or most important part.
• Example: the welfare of children as the heart of the issue (core of the issue), which color to paint the animal shelter as a minor decision (non - example, a minor decision, not core)
• Example: the welfare of children as the heart of the issue
• Non - Example: which color to paint the animal shelter as a minor decision

Word	Example	Non - Example
comment	a statement reacting to a dress code for your school	no reaction to the choice for class president
contribute	adding ideas to the planning of the parade float	letting others do all the work to put on the school play
layer	a coating of oil on top of the water	a solid lump of coal
core	the welfare of children as the heart of the issue	which color to paint the animal shelter as a minor decision

Answer:

To solve this, we analyze each word's meaning and match with examples/non - examples:

Word: alternative

• Meaning: A choice or option.
• Example: riding your bike instead of walking to school (offers an alternative way to get to school), only one after - school activity you can join (this is a non - example as there's no alternative, just one option? Wait, no. Wait, "riding your bike instead of walking" is an alternative. "only one after - school activity" is a non - example as there's no alternative. Wait, let's re - evaluate. "riding your bike instead of walking to school" is an example of an alternative (choosing bike over walking). "only one after - school activity you can join" is a non - example (no alternative).
• Example: riding your bike instead of walking to school
• Non - Example: only one after - school activity you can join

Word: comment

• Meaning: A statement of opinion or reaction.
• Example: a statement reacting to a dress code for your school (a comment on the dress code)
• Non - Example: no reaction to the choice for class president (no comment)

Word: contribute

• Meaning: To give or add (ideas, work, etc.).
• Example: adding ideas to the planning of the parade float (contributing ideas), letting others do all the work to put on the school play (non - example, not contributing)
• Example: adding ideas to the planning of the parade float
• Non - Example: letting others do all the work to put on the school play

Word: layer

• Meaning: A thin sheet or coating.
• Example: a coating of oil on top of the water (a layer of oil), a solid lump of coal (non - example, not a layer)
• Example: a coating of oil on top of the water
• Non - Example: a solid lump of coal

Word: core

• Meaning: The central or most important part.
• Example: the welfare of children as the heart of the issue (core of the issue), which color to paint the animal shelter as a minor decision (non - example, a minor decision, not core)
• Example: the welfare of children as the heart of the issue
• Non - Example: which color to paint the animal shelter as a minor decision

Word	Example	Non - Example
comment	a statement reacting to a dress code for your school	no reaction to the choice for class president
contribute	adding ideas to the planning of the parade float	letting others do all the work to put on the school play
layer	a coating of oil on top of the water	a solid lump of coal
core	the welfare of children as the heart of the issue	which color to paint the animal shelter as a minor decision