fact and question: matter with variable volume and shape assumes the shape and size of its entire container
Question: An item that might have more tightly packed matter is

What's the answer?

answer: gold

fact and question: An example of replacing a natural resource is planting new trees where a forest once stood
Question: Which would mandate replacing natural resources?

What's the answer?

answer: overlogging

fact and question: a mammal usually nurses its offspring
Question: If a kitten is unable to nurse from birth

What's the answer?

answer: it will expire

fact and question: a solution is made of one substance dissolved in another substance
Question: Jerry put some salt into some tap water and stirred it up. What has Jerry made?

What's the answer?

answer:
a solution