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s344n2d4d5 [400]
3 years ago
11

Which of the following is most likely an indication of a chemical change

Biology
1 answer:
Masja [62]3 years ago
7 0
Color, smell/ odor, taste
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All organisms in an ecosystem are interrelated by the abiotic and biotic resources they use in the course of their lives:
jonny [76]

<span>a)      </span>The milkweed is the primary producer in the ecosystem. It manufactures food from the abiotic factors in the soil such as nitrates and water and those in the atmosphere such as carbon-dioxide and sunlight. The milk weed is then fed on by the caterpillar and a primary consumer. The caterpillar is then fed on the mocking bird (secondary consumer)

<span>b)      </span>Increased human population growth and their activities have resulted in the emission of carbon dioxide and other greenhouse gases in the atmosphere. This has increased the global temperature. This increase of global temperature increase ocean temperatures causing coral bleaching.

Another example is depletion of water sources by human activities hence causing drought. Drought reduces the amount of vegetation growth due to scarcity of water in the soil (due to lowering of the water table) for plant growth.  

3 0
3 years ago
a circle fence sourrounding a small yard mesure 84 meters in length if you walk from one side from the other through the middle
anygoal [31]

Answer: 26.75 meters.

2πr = 84

2 * 3.14 * radius = 84

radius = 84/6.28

r= 13.375

So the diameter will be 13.375 + 13.375 which is 26.75 meters.

4 0
2 years ago
You have a 16N sack of potatoes that you need to lift onto the kitchen counter. You set up a pulley system with a mechanical adv
natali 33 [55]

A force of 8 N will be required.

<h3><u>Explanation:</u></h3>

Mechanical advantage is defined as the ratio of output force from a system to the input force into the system. A machine which has the mechanical advantage more than 1 means it requires less force to give more force as output. Similarly, when the mechanical advantage for the machine is less than 1,it means more force is required to give to achieve a less one.

Here in the question, the mechanical advantage of the pulley is 2.

Output force required to pull the sack of potatoes upto kitchen is 16N.

Mechanical advantage = Output force / input force.

Or, 2= 16 / input force.

So input force = 16 / 2  =8.

So a force of 8 N will be required to pull the pulley.

7 0
3 years ago
A group of prokaryotes that live in extreme environments are what
jeka57 [31]
The answer is Archaea
8 0
2 years ago
Read 2 more answers
Please help with my biology
astraxan [27]

1. Plantae

2. Kind

3. Genus

4. Gymnosperms

5. Prokaryotes

5 0
3 years ago
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