C. data analysis.
I just took a test with this exact question and c was the correct answer
Answer:
False.
Explanation:
Hydrogen atoms do not fuse under normal conditions to form helium.
The question is talking about thermonuclear reaction which takes places in Sun, i.e two atoms combine to form a larger atom.
Also, this looks like a question from Physics instead of Biology.
Answer:
availability of resources.
Explanation:
Availability of resources is abiotic factor which is responsible for the decrease in population in 1990 because when the population reaches its carrying capacity so the organisms compete with each other and due to limited resources such as food etc the decrease occurs in population. Infection is also occurs when there is high population due to which death occurs and population of organism decreases.
C: melted rock cools and solidifies
D: sediment is buried and compacted
Answer:
searching for extraterrestrial life in the universe