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HACTEHA [7]
3 years ago
6

Freda grows potted plants outside in the summer. When the weather is very hot, her plants need to be watered every day to keep t

hem from wilting.
For a class project, Freda designed a system that would automatically water her plants at 10:00 p.m. on days when the temperature reached 90°F. These are the steps she followed to design it:

Freda researched automated watering systems.

She brainstormed different solutions, then chose that one that she thought would work the best.

She sketched a design of the system and listed the equipment she would need to build it.

Next, Freda wanted to build her system, but she discovered that she could not afford to buy all the materials.

What mistake did Freda make in her design process that kept her from completing her project?

A.
She did not communicate her solution to others.
B.
She did not account for cost constraints in her solution.
C.
She did not evaluate her product in order to improve its design.
D.
She did not include measurements in her design sketch.
Biology
1 answer:
nasty-shy [4]3 years ago
3 0

Answer:

B.) She did not account for cost constraints in her solution.

Explanation:

She did everything right except for B.

If we are planning on building something that requires materials we don't already have, we should research the cost of the materials, and our budget.

<em>Hope this helped</em><em> </em><em> </em><em>:</em><em>)</em>

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The liver performs all of the following functions except
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Its either A or C. thats all i can say though but B and D you can rule out. I hope i helped a little 
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3 years ago
How can a scientist test a hypothesis if it is not possible to do a controlled experiment.
serious [3.7K]

Answer:

In an experiment, the researcher needs to have a control group with an experimental group where both groups are identical in every way except that the controlled group does not gets the experimental treatment.

Sometimes, it is not possible to do a test or the experiment utilizing a controlled trial (due to ethical reasons or no practical method available). All things considered, a researcher may test a theory by making predictions about outcomes or patterns that ought to be found in nature if the hypothesis is right.

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What fossil fuel is responsible for 40% of the United States power generation
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Petroleum (Gasoline)
5 0
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When shopping for fruit trees for your yard select varieties that mature before the hot summer temperatures arrive to avoid sunb
notka56 [123]

Answer:

True.

When shopping for fruit trees for the yard we should select varieties that mature before the hot summer temperatures arrive to avoid sunburning fruit.

Explanation:

  • The fruit trees on your yard should be carefully selected, always seek for the fruit that matures before the summer season.
  • The summer season hot weather is most likely to burn down the tree and may also kill it before it can grow.
  • Once it gets matured then there is no drastic effect of sun so, we must select tree in such a manner that it must get matured before hot summer.
3 0
3 years ago
Ecosystem services include processes that increase the quality of the abiotic environment. Which of the following processes woul
slega [8]

Answer:

Option D, only II, III, and IV

Explanation:

Complete Question

Ecosystem services include processes that increase the quality of the abiotic environment. Which of the following processes would fall under this category?

I) Keystone predators have a marked effect on species diversity.

II) Green plants produce the oxygen we breathe.

III) The presence of land plants builds soil.

IV) The presence of diverse wetlands helps in flood control.

A) only II and IV

B) only I and III

C) only I, II, and IV

D) only II, III, and IV

Solution -

The services of ecosystem has been classified into four groups  

a)  Provisioning – Where essential abiotic and biotic substance are produces such as production of food and water, reproducing offspring etc.  

b) Regulating – the ecosystems is controlled through environmental factors such as control of climate and disease

c) Supporting – Ecosystem support the activities that are essential for survival. Primarily includes all nutrient cycles, oxygen generation etc.  

d) Cultural – Provide aesthetic view and  recreational benefits

Option II co mes under supporting service of ecosystem

Option III co mes under Provisioning service of ecosystem

Option IV co mes under Regulating service of ecosystem

Hence, option D is correct

5 0
3 years ago
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