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Lady_Fox [76]
3 years ago
5

Why don't we experience a solar eclipse every month?

Biology
1 answer:
strojnjashka [21]3 years ago
7 0
This is due to the earths spin on it's axis and the moons gravitational pull. We don't and cant get a lunar eclipse  or a solar eclipse  every month, since the alignment of the sun, moon and Earth is not exact enough.
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Explain how protoadry prevents self polllination​
NeTakaya

Explanation:

Protandry - Male reproduction organ/anthers androecia/ stamens mature earlier than female reproduction organ/ carpels/ stigma/ pistil/ gynoecium in a flower. (ii) Self sterility - pollen grains are sterile to stigma of the same plants or same flowers.

I hope it's helpful for you.....

5 0
3 years ago
What waste product of photosynthesis allows you to live on earth?
asambeis [7]
Photosynthesis allows plants to take in sunlight, water, and carbon dioxide to make energy for themselves, a type of sugar called glucose. 

Glucose = C_{6}  H_{12}O_{6} 

The other thing that is made from photosynthesis is oxygen. 

Without oxygen, we would not be able to live on earth.

Hope this helps!
4 0
3 years ago
Read 2 more answers
Is umbrellaology a science?
ElenaW [278]

Answer: umbrellaology is not science

Explanation:hope I helped :)

7 0
3 years ago
The minimum amount of energy needed to start a chemical reaction is known as:
nadya68 [22]

Answer:

The correct option is B. Activation energy

Explanation:

The activation energy is usually used to designate the minimum energy necessary for a given chemical reaction to occur, that is, the basic requirement for the reaction to proceed.

For a reaction to occur between two molecules, they must collide in the correct orientation and have a minimum amount of energy. As the molecules approach, their electron clouds are rejected. This requires energy (activation energy) and comes from the heat of the system, that, is, from translational, vibrational energy, etc of each molecule. If the energy is sufficient, the repulsion is overcome and the molecules are close enough for a rearrangement of the bonds of the molecules.

The concept of Activation energy was introduced by Arrhenius in 1889. Arrhenius suggested that molecules must prossess a minimum amount of energy to react. That energy comes from the kinetic energy of the clliding molecules. Kinetic energy serves to cause reactions, but if the molecules move very slowly, the molecules will only bounce when they collide with other molecules and the reaction does not happen. In order for the molecules to react, they must have a total kinetic energy that is equal to or greater than a certain minimum value of energy called activation energy.

6 0
3 years ago
Picture a person standing with a drawn bow and arrow. He is aiming it at a bull's eye target. What type of energy is being descr
Kazeer [188]
This is potential energy because while he was aiming at a bull's eye target, he is storing energy
7 0
3 years ago
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