Answer: A semi-permeable membrane is that which only allows certain
substances to pass through.
D) earthquake
Earthquakes release gases into the atmosphere.
Answer:No
Explanation:Plants will not just have to rely on one animal to help reproduce. Plants can mimic things such as scents or looks to be an incentive for other animals. Wind and water can also help transport pollen. Plants always have pollinators such as wind, water, insects, and animals. Plants use mimicry in order to attract the biotic pollinators. Plants will never have trouble reproducing because they have so many different pollinators.
During photosynthesis, plants take in light energy from the Sun, carbon dioxide from the air, and water through their roots. Oxygen is a product of photosynthesis.
Astronomers have seen stars forming within a nebular cloud. As the nebular cloud condenses and its own gravitational attraction collapses it, heat and energy build up creating a planet.
