Answer:
Lava is rock that has undergone a physical change and has liquefied. What is known about this change? The lava gained mass
Explanation:
Nitrogen must be converted into nitrates before organisms can use it. If soil lacks nitrogen fixing bacteria, then it has few nitrates for the plants to take in.
Answer:
Mutations that cause the death of an organism are called lethals — and it doesn't get more negative than that.
<span>While at the Galapagos islands, he noticed that animals on the different islands differed. For example, the giant tortoises on one island had saddle-shaped shells, while those on another island had dome-shaped shells. People who lived on the islands could even tell the island a turtle came from by its shell. This started Darwin thinking about the origin of the species. He wondered how each island came to have its own type of tortoise.
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The first step of the water cycle is evaporation. It is the process where the water at the surface turns into something we call water vapor. The second step is condensation. This is the process when the water vapor turns into ice/water droplets. The third step is sublimation. It is the process of when the ice directly converts into water vapor with out turning into liquid water. The forth step is precipitation. This is when the clouds pour down due to temperature or wind change. The fifth step is <span>transpiration. When the water sinks into the roots of the plant, the transpiration process is similar by when liquid water is turned into water vapor the the plant. The sixth step is runoff. This is when water runs over the surface of the earth. The final process is infiltration. This is if some of the water does not runoff into rivers, the water seeps into the ground and increases the level of ground water table.</span>
