CORRECT ANSWERS 2025-2026
UPDATED.
limiting reagent: passage about reaction two types
What limiting reagent mean in the passage? - Answer Ans : limiting reagent in the substance
that *totally consumed after reaction*.
Nuclear fusion star luminosity
Passage matter to energy through process called nuclear fusion moss I've mass creates energy
more than lighter mass.
What is the conclusion of this passage? - Answer Ans : People on Earth saw the stars shine
very brightly because they had a lot of energy.
Earth age
Passage about
Earth have gone though many transformations radioactive atom is sample
What is the main idea of this passage? - Answer Ans : radioactive atom help dating earth
age.
human activity
Methane emissions
Greenhouse effect cause by human activity such a fossil fuel, mining, oil production - Answer
make the mean temperature increase
Use anthropological model
Human Genome Project
Scientific research draft version of human genome sequence published in February 2001
completed 90% There are approximately 30,000 genes in human DNA.
On April 2003, on complete human genome sequence was finished and revise 30,000 gene to
20,500 gene.
What is the statement is main idea of this passage? - Answer Ans : gene have been
overestimated.
, 5 time greater than organisms living in the sand.
น้ํา คลื่น มาก่อนทรยะค
Hammer and feather
Apollo 15 flight to the moon in 1971 : Commender David Scott experiment: การปล่อย hammer and
feather พร้อมกัน on moon hammer mass = 1.82 / feather mass = 0.03 / velocity =?
What relationships between kinetic energy of hammer and feather right before hit the surface
of the moon? - Answer Ans : hammer has more kinetic energy than feather ,because it has
more mass.
Missels life cycle - Answer adult = วัยโตเ็ม
Glochidia (larva)=หอยพ่นไขใสปากล Fish host = อยู่ในปากบ
Juvenile = หอยวัทารก
Subadult = ลูกหอย
glacial expansion
Variable that effect to Glacial expansion is "Winter temperature " because temperature in the
past is very lower than in the present - Answer -
biodiesel
Is a diesel fuel that is made by reacting vegetable oil with other common chemicals.
Biodiesel may be use in any diesel or engine in its pure from or blended with petroleum-based
diesel . - Answer Ans: No modifications are required,and the results is a less
expensive,renewable,clean-burning fuel.
Isotope
same electron having the same number of protons
but different number of neutron and therefore atomic mass mass number
What can be conclusion chart above ?. - Answer Ans : isotope have same number of proton
and electron.
Triclosan
Is an antibacterial agent found in some Consumer products, including Soaps, tooth
paste,detergent, shampoo.