Review the terms and their definitions in the Mini Glossary. Write a sentence that tells how amplitude and frequency can describe a wave.

A wave is a type of motion caused by water and wind that can cause a huge wave also depending on weather and it can be found in a beach at a ocean and more type of water places.

Explanation:

answer: the blood-brain barrier is a layer of specialized membranes and cell processes designed to keep undesirable substances from passing from the bloodstream into the precious tissues of the brain. while the blood-brain barrier does keep most bad things out of the central nervous system, it is not impermeable.

explanation:

enhanced global partnerships and exploration capabilities may advance international preparedness for protecting the earth from catastrophic events such as some asteroid strikes, advancing collaborative research on space weather and protecting spacecraft by developing new means for space debris removal.