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Thepotemich [5.8K]
3 years ago
12

Why wouldn't you use a steel core as an electromagnet?​

Biology
1 answer:
kirill115 [55]3 years ago
6 0

Answer:

this is because Steel is more difficult to magnetise and demagnetise but an iron core makes a temporary electromagnet because its lose its magnetism when the switch is open and and steel core is used to make a permanent electromagnet

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What is this? Please answer with an explanation
Oksi-84 [34.3K]

Answer:

precipitation

Explanation:

its a big boy word for rain ;)

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3 years ago
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Help me please! thanks
garri49 [273]

Answer:

A. As mass increases, volume increases

Explanation:

The table in the image attached is depicting the relationship between the mass, volume and density of a certain metal A. Ideally, the density of a substance is directly proportional to its mass, and indirectly proportional to its volume.

However, based on the data provided on this table, the MASS (g) increased as the VOLUME (mL) increased and vice versa. The highest mass of 10.10g has a volume of 3.8mL. This value of volume decreased with decreasing mass. Hence, based on the information of the table, as mass increases, volume increases.

5 0
3 years ago
What TWO factors do scientists track and monitor in all types of freshwater ecosystem?
ivolga24 [154]

Answer:

A: light availability

B: nutrients

Explanation:

Both nutrients and light availability affect the primary productivity of the freshwater ecosystem, therefore, scientists study both factors to track associated changes. This is because photosynthesis is driven by sunlight and nutrients availability. It is suggested that the abundance of autotrophs (e.g. phytoplanktons) in an aquatic ecosystem increases as light and nutrients availability increase. Thus, there will be more food available for secondary and tertiary consumers to feed upon. Resultantly, the aquatic environment will turn a biodiversity hotspot where many species of living organisms start dwelling. Thus, scientists mainly ecologists would focus on these two parameters at first that lead to consideration of other parameters.

For more information, you may want to read this scholarly article

https://aslopubs.onlinelibrary.wiley.com/doi/abs/10.4319/lo.2006.51.1.0288

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3 years ago
All of the following are abiotic factors that influence aquatic ecosystems except?
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B. THE PRESENCE OF PLANKTON
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Question 10
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Cognitive psychology. Anything that has the word “thinking” or “perception” will be cognitive.
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