Grade 10 Science Challenge
Quiz
•
Science
•
10th Grade
•
Practice Problem
•
Hard
Deepak Khonde
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25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
What is the unit of electric current?
B
D
C
A
Answer explanation
The unit of electric current is represented by the symbol 'A', which stands for Amperes. Therefore, the correct answer is A.
2.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Which element is the basis of organic chemistry?
Nitrogen
Carbon
Hydrogen
Oxygen
Answer explanation
Carbon is the basis of organic chemistry due to its unique ability to form long chains and complex structures, essential for organic compounds.
3.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
What is the atomic number of Carbon?
6
5
8
7
Answer explanation
The atomic number of Carbon is 6, which corresponds to the number of protons in the nucleus of a Carbon atom.
4.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
What happens to light when it passes from air to glass?
Refraction
Reflection
Absorption
Diffraction
Answer explanation
When light passes from air to glass, it undergoes refraction, which is the bending of light as it enters a different medium.
5.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
What is the process of using living organisms to develop products?
Biotechnology
Genetic engineering
Bioengineering
Microbiology
Answer explanation
The process of using living organisms to develop products is known as Biotechnology, making it the correct choice among the options provided.
6.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
How can we conserve natural resources for future generations?
By depleting ecosystems, implementing regulations to encourage overexploitation, and not considering future generations
By wasting resources, ignoring environmental impacts, and promoting unsustainable practices
By increasing consumption, disregarding conservation efforts, and exploiting resources without limits
By reducing, reusing, and recycling materials, promoting sustainable practices, protecting ecosystems, and implementing regulations to prevent overexploitation.
Answer explanation
By reducing, reusing, and recycling materials, promoting sustainable practices, protecting ecosystems, and implementing regulations to prevent overexploitation.
7.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
What type of energy is obtained from natural sources like sunlight and wind?
Nuclear energy
Nonrenewable energy
Fossil fuel energy
Renewable energy
Answer explanation
Renewable energy is obtained from natural sources like sunlight and wind, making it the correct choice.
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