Answer:
Henri Becquerel and the Curies worked with uranium, radium, and polonium, all of which give off radiation.
Explanation:
Henri Becquerel and Marie Skłodowska-Curie discovered the process of radioactivity. They were awarded Nobel prize for their work. Radioactivity is the process in which an unstable element emits energy in the form of radiation. This process also produce a lot of heat. Radiations are very harmful for human health however they have wide applications in modern technology.
Answer:
A or/and D
Explanation:
Environmental science is the study of how organisms interact with their environment so it can be either a or d. I would say a combination of both.
Contents of the model cell will change color.
hope this helps
Answer:
It provides the cells with oxygen
B. Gray squirrels
because in the food chain a primary consumer is an animal that feeds on plants; a herbivore.