Q: The first reported nuclear fission occurred in 1939 when three german scientists bombarded uranium-235 atoms with slow-moving what? A:

OPTIONS:
- protons
- electrons
- isotopes
- neutrons

Answer: neutrons

Problem: OPTIONS:
- rivers
- ocean
- moon
- sun
Q: Q: What celestial body is the earth's main source of energy? A:
Answer: sun

Problem:OPTIONS:
- conceptual tree
- superficial tree
- photogenetic tree
- phylogenetic tree

Q: What tool do scientist's use to show the evolutionary pathways and connections among organisms? A:
****
A: phylogenetic tree

Q: Increasing the temperature of n2 molecules increases what energy of motion? A:
OPTIONS:
- compression energy
- residual energy
- emotional energy
- kinetic energy
kinetic energy

Q: Rather than being dead, dry, and brittle, what support structures of the human body consist of living tissues and are supplied with blood and nerves? A:
OPTIONS:
- lungs
- feet
- hearts
- bones

Answer: bones

input with options: Q: What includes the living organisms in an area and the non-living aspects of the environment? A:
OPTIONS:
- outpost
- habitat
- degradation
- ecosystem
output:
ecosystem