A c and d I think i hope it helps
The correct answer is: An asteroid impact.
The scientists call it the extraterrestrial impact theory. It states that a giant, six mile wide meteor hit the Earth around 66 million years ago. As a consecuence, clouds of iridium dust and other materials were thrown into the air, blocking the sunlight for years. This lead to the extintion of the dinosaurs who were not able to feed themselves as plants didn't grow. Photosynthesis was not possible and food chains could not be completed. When the dust settled the greenhouse gases were locked in the atmosphere causing a general increase of temperature.
The correct answer is: A) Sanitation
Sanitation refers to the conditions that relate to public health, including the provision of clean drinking water as well as sewage disposal. The lack of basic sanitation leads to numerous problems. One of the most important is the death of thousands of children, over 525,000 of them dye every year because of diarrheal disease according to the World Health Organization.
Answer:
Explanation:"Ay ay my homie we gotta reform my hood bro"
"No thank you black man, amen"
"Alright mannnn (hits joint), whateva you say"
Laws would vary from one State to the other, which would make it difficult to adhere to if you're not from that State. Also, politics would play into effect. I'd like to use the American Civil War as an example; some states were for Slavery, meanwhile others sided on the abolishment side. That could come into play here, and that could be extremely dangerous.
