Hello there.
<span>Which law was the first expansive piece of legislation regarding national gun control?
</span>The National Firearms Act
Answer:
Mountains and Oceans
Explanation:
There are various natural barriers that prevent species from migrating such as Mountains and Oceans. If a species does not have the physical requirements to swim across an ocean or climb over a mountain it completely prevents them from passing such a barrier and moving to another geographical location to establish a new habitat. This ultimately causes them to stay in place and create a habitat island. There are many other natural barriers as well such as valleys, and rivers, waterfalls, and even weather effects such as snow habitats which some animals can't survive in.
A. the training program and certification in cardiopulmonary resuscitation in first aid.
b. a bachelor's degree in business and experience.
c. a high school diploma and training
d. a Masters or doctoral program