I believe, those two materials were bamboo and carbonized thread
After thousands of experiments, Edison realized that filaments made from carbonized bamboo could alst for more than 1200 hours. (while others probably only last for several days)
This invention made Edison really rich after he mass produce it in late 1800s
Answer:3. To make honest, ethical presentations of data.
Explanation: The primary responsibility of scientists in the process of making environmental law is to ensure that they make honest,ethical presentation of data.
Making available the real and honest situations on the environment available is enough to make the Law makers make adequate laws necessary for it's protection. Persuasion and other points highlighted are not better options,the best solution is to make available the honest data and ethical situation.
There are of course more than three purposes of a democratic constitution, but perhaps the three most important are to declare popular sovereignty, the rule of law, and the separation of powers.
Explanation:
You just have predict or guess how many offsprings there is going to be based off of the cross it gives you. Hope this explanation helps you
It could be because the water is in constant motion, in someway filtering it with help from the sun heating the water, killing the bacteria.