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Kruka [31]
3 years ago
14

What is used to power ships and machinery

Biology
1 answer:
Lena [83]3 years ago
4 0
Fossil fuels, gasoline, diesel, electricity, etc.
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Which of these describes the most common way that material is added to a continental shelf?
slavikrds [6]
Had to look for the missing options and here is my answer.

The one that gives the best description of the most common way how material is added to the continental shelf is this: "Deposition of continental <span>sediments". This deposition includes biological, physical, and even chemical processes that occurred in a span of time. Hope this helps.</span>
7 0
3 years ago
Stars are made primarily of helium and hydrogen. True False
dolphi86 [110]

Answer:

This is false.

Explanation:

Stars are made of very hot gas. This gas is mostly hydrogen and helium, which are the two lightest elements. ... Most stars have small amounts of heavier elements like carbon, nitrogen, oxygen and iron, which were created by stars that existed before them.

4 0
3 years ago
Read 2 more answers
Why is variety in crop plants important for food security?
aev [14]

Answer:

Disease and Famine

Explanation:

If there is a disease that affects a type of plant, having other types of crops to rely on could save one from starvation. Also, only planting one crop in an area can change the pH and nitrogen levels in negative ways, so that eventually no plants can grow there. Not to mention the obvious balanced diet needed for a healthy body.

4 0
2 years ago
Which of the following statements regarding human cells are true? Check all that apply.
lana66690 [7]

Answer:

  • Human growth and functioning can be explained by the functioning of the cells.
  • Cells are the fundamental units of humans.
  • The functioning of the cells in the body determine human health.

Explanation:

The cell is the basic unit of life. Therefore the biochemical activities of the cell at a micro-level will definitely influence overall physiology at the macro level of an organism. For example, the production of Thyroid hormone at the molecular level by the cells in the thyroid glands will influence the metabolisms of all cells in a human being and therefore affect the organism’s overall growth and development.

7 0
3 years ago
Cell division occurs to allow for
kati45 [8]
D. all of the above because

Repair of damaged tissue.
Growth of an organism.
Replace old and dying cells.
7 0
2 years ago
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