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VARVARA [1.3K]
3 years ago
8

A student will measure and record the growth of two flowering plants every day for 28 days. Plant A will be watered and fertiliz

ed, Plant B will only be watered. The student predicts fertilizer added to the soil leads to taller flowering plants. Scientific conclusions are based on scientific evidence, what evidence would support the student’s prediction? A) Plant A and Plant B both die B) Plant A grows taller than Plant B C) Plant B grows taller than Plant A D) Plant A and Plant B grow to the same height
Chemistry
2 answers:
mestny [16]3 years ago
5 0
The conclusion that would support the students prediction is B) Plant "A" grows taller than Plant "B".
If the student thinks that adding fertilizer to the plant would help it grow then answer B) would make the most sence.
Jlenok [28]3 years ago
4 0

Answer:

The correct answer will be option-B

Explanation:

In the given question, the experiment was performed to test "if adding the fertilizer will increase the growth of plants" in terms of height and measured the height of the plants.

The experimental group (plant A) was provided with the water and fertilizer whereas the control group (plant B) was provided only water and the height of the plant was recorded which showed that experimental group showed more height.

This can be explained as the fertilizer adds the nutrients to the soil which the plants lack and since the plants get enough amount of fertilizer. Thus, Plant A grows taller than plant  B.

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On her way to school Tuesday morning, Ana got soaking wet during a surprise rainstorm. She was not carrying an umbrella or rain
Elina [12.6K]

Answer:

Prevailing winds

Presence of mountains

Seasonal winds.

Explanation:

Prevailing winds:

Prevailing winds is the wind that blows across an area or surface over time. It affects the amount of precipitation. If winds blows inland from water bodies such as oceans the amount do precipitation will be high because they carry more water vapor than the winds that blow over land.

Presence of mountains :

Mountain ranges affect precipitation too.The windward side of the mountain, which is the side the wind hits has higher precipitation while the land on the other side of the mountain, leeward side, will have little precipitation.

7 0
3 years ago
An atom that has a negative four charge will have one of the following?
expeople1 [14]
B. An equal amount of protons and electrons
8 0
3 years ago
Read 2 more answers
(-5)+(+7)-(-4) + (+12)<br>A 8<br>B 10<br>C 18<br>d 20<br>​
Vladimir79 [104]

Answer:

C-18

Explanation:

Step one follow order of operations

Add and subtract from left to right(-5)+(7)=2-(-4)+(12)

STEP 2

Apply negative Rule -(-4)=+4=2+4+(12)

then add 2+4+12=18

5 0
3 years ago
At 25 °c, what is the hydroxide ion concentration, [oh–], in an aqueous solution with a hydrogen ion concentration of [h ] = 3.0
chubhunter [2.5K]

As,

Water has a pkw=14

so it can be represented as,

[H+] [OH-] = 1*10^-14

If [H+] = 3*10^-5M

[OH-] = (1*10^-14) / ( 3*10^-5)

[OH-] = 3.3*10^-9 M

5 0
3 years ago
What is the significance of "Er" in the diagram?
Drupady [299]

Answer:

The significance of "Er" in the diagram is :

B.) Threshold energy for reaction

Explanation:

Threshold energy : It is total amount of energy required by the reactant molecule to reach the transition state .

Activation energy : It is the excess energy absorbed by the molecules to reach the transition state.

<u>Activation Energy = Threshold Energy - Average Kinetic Energy</u>

<u>This means Activation energy decreases on increasing kinetic energy</u>

On increasing Temperature average kinetic energy of the molecule increases which reduces the activation energy and the reaction occur faster in that case.

Catalyst also reduces the Activation energy.

<u>Er = Threshshold energy for reaction at 30 degree</u>

<u>Ea = Activation Energy</u>

<u>The given figure shows that the threshold energy decreases on increasing the temperature</u>

<u>Only the molecule having energy greater than Er can react to form product</u>

3 0
3 years ago
Read 2 more answers
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