← SetsScience — Set 4
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Science Practice Questions — Set 4
10 free Science reviewer questions with answers and explanations. Pindutin ang sagot mo para makita agad kung tama — kasama na ang paliwanag. Set 4 of 5.
31
What is the primary source of all energy for the Earth's ecosystems?
32
In chemistry, what is an atom that has gained or lost one or more electrons?
33
Which gas is primarily responsible for the greenhouse effect on Earth?
34
What is the instrument used to measure atmospheric pressure?
35
Which part of the plant is primarily responsible for absorbing water and minerals?
36
What is the approximate speed of sound in air at room temperature?
37
Which component of blood is responsible for the formation of clots to stop bleeding?
38
In the periodic table, what are the horizontal rows called?
39
What is the process by which liquid water changes into water vapor?
40