Answer:
The reason is that there are radioactive elements that are in the center of the earth.
Explanation:
If the earth were only a rock cooling from the time of its birth. It should have already cooled completely thousands of years ago. However, volcanoes continue to shed hot magma and this is proof that there is a source of heat in the center of the earth. This source of heat is due to the radioactivity of elements such as Uranium and Thorium that were enclosed during the formation of the earth. These elements slowly disintegrate emitting particles that collide with others emanating heat. For example, the half-life of uranium is 4.5 billion years, which means that it decays very slowly.
O a sea creature's shell
O a flowering plant
O a tree trunk
Answer:
C- FLOWERING PLANT
Explanation:
100% on edge
A. The temperature of a substance goes down as heat is added.
B. During a phase change, the temperature of a substance does not
change.
C. If heat is added to a substance, the temperature always
increases
D. The temperature of a substance is constant during a phase
change.
Answer:
Answer A is wrong
Explanation:
because the temperature increases as soon as the temperature increases
Hope it helps you
Statements A and C are both false. Adding heat to a substance typically causes its temperature to rise, but this is not the case during a phase change. During a phase change, a substance's temperature remains constant because the added heat goes into the phase transition.
In physics, understanding how heat energy affects the temperature and phase state of a substance is crucial. Out of the provided statements, option A and C are false.
A. The temperature of a substance goes down as heat is added - This is false. By default, adding heat to a substance causes its temperature to rise, unless a phase change is in progress.
C. If heat is added to a substance, the temperature always increases - This statement is also false. While it's true in many situations, during a phase change (for example, when ice is melting or water is boiling), adding heat does not raise the temperature. Instead, the energy goes into changing the phase of the substance.
Meanwhile, option B and D are correct. B. During a phase change, the temperature of a substance does not change, and D. The temperature of a substance is constant during a phase change - Both are true statements that reflect the same fact: during a phase change, any added heat goes into the phase transition, not into raising the temperature.
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Answer:
They make food by using chemosynthesis.
Explanation:
Deep-water bacteria, known as chemoautotrophs, make their own food through a process called chemosynthesis, using chemicals like hydrogen sulfide from hydrothermal vents instead of sunlight.
Some deep-water bacteria in the ocean are known as chemoautotrophs, which can produce their own food by using chemical energy from hydrothermal vents. Unlike plants, they do not use sunlight for photosynthesis. Instead, they rely on chemosynthesis for their energy supply. In this process, bacteria convert chemicals from the vents into usable energy or food. For example, some bacteria use hydrogen sulfide, a chemical abundant in the deep ocean, for chemosynthesis. This biological process allows these deep-water bacteria to thrive in environments where sunlight is not available.
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True or False