Answer:
it is D
What global climatic change gave gymnosperms an advantage over ferns?
A) Increased fluctuations in global climate
B) the climate becoming hotter and wetter
C) the climate becoming cooler and drier
D) the climate becoming hotter and drier
<h2>°·.¸.·°¯°·.¸.·°¯°·.¸.-> Answer >-.¸.·°¯°·.¸.·°¯°·.¸.·° </h2>
When heat is added to a solid, its particles move _______
A. faster
B. slower
C. closer together
<em>D. the same speed</em>
<h2>(っ◔◡◔)っ ♥ Answer ♥</h2>
A. (I THINK-)
<h2>Explanation</h2>
When heat is added to an object, the molecules vibrate faster. As they go faster, there is more space in between the molecules.
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</h2>
Subject: Science
Unit: Atoms, Molecules,
Grade: 5-7
(I think I might be wrong-)
Answer:
Igneous rocks form when magma (molten rock) cools and crystallizes, either at volcanoes on the surface of the Earth or while the melted rock is still inside the crust.
Sedimentary rocks are erosion, weathering, dissolution, precipitation, and lithification. Erosion and weathering include the effects of wind and rain, which slowly break down large rocks into smaller ones.
Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.
Explanation:
Answer:
F,T,T,F
Explanation:
1)false-(its a covalent bond)
A water molecule is formed when two atoms of hydrogen bond covalently with an atom of oxygen.
2)True-(water is a polar molecule)
Water is a polar molecule because the positive end attracts particles of negative charge.
3)True
water dissociates to form hydrogen ions (H3O+) and hydroxide (OH-) ions
4)false
Lower pH number means stronger acid, higher pH number means stronger base.