final exam please

8. Which event was responsible for the increase in oxygen in the atmosphere during Precambrian time? (1 point) a series of volcanic eruptions the evolution of land animals a comet crashing into the planet the appearance of photosynthetic organisms

9. Which example shows how natural selection can affect the individuals in a species? (1 point) The length of snakes increases as they grow older and eat more food. The number of light-colored mice increases over time in a sandy environment. Some individu...

10. Which statement correctly describes both rocks and minerals? (1 point) Rocks are naturally occurring and minerals are not naturally occurring. Rocks only occur as solids and minerals occur as solids, liquids, and gases. Rocks have uniform structures a...

14. The Himalayan Mountains were formed when the Indian Plate collided with the Eurasian Plate. Which type of plate boundary is between the Indian and Eurasian plates? (1 point) continental boundary convergent boundary divergent boundary transform boundar...

15. How does convection transfer heat throughout Earth’s surface and interior? (1 point) Heat and pressure build up over time in the Earth’s core. Heat cycles through liquid magma currents in the mantle. Heat from the sun reaches Earth in the form of rays...