You are presented with the question "What shows evolution over geologic time above the level of the species?" and the following answer choices: - speciation events - Leptospirosis - cliffs - rapid expansion - peachleaf willow - swamp vegetation - Darwin - RNA Now knowing that macroevolution is evolution over geologic time above the level of the species and speciation events are thus examples of macroevolution, choose the best answer.
speciation events
(Question)
You are presented with the question "What is required before a chemical change?" and the following answer choices: - kinetic energy - energy usage - activation push - activation energy - activation switch - activation power - Burning fuel and air - Evaporation Now knowing that all chemical reactions require activation energy to get started and chemical changes are a result of chemical reactions, choose the best answer.
(Answer)
activation energy
Ques: You are presented with the question "Where are deposits of gold found?" and the following answer choices: - In sediment - kalenchoes - fissures - rocks - mines - coral reefs - inactive - calcite Now knowing that vein deposits of gold and silver are formed by igneous intrusion and veins of Gold ore most commonly occur in cracks and fissures in igneous rocks, choose the best answer.
Ans: fissures
(Q).
You are presented with the question "Which of the following can cause objects to repel each other?" and the following answer choices: - electromagnetic energy - mass - Electrical energy - gravitation - electrical currents - photosynthesis - the Great Barrier Reef - electricity Now knowing that magnetism can cause objects to repel each other and electrical currents cause magnetic fields, choose the best answer.
(A).
electrical currents
Ques:You are presented with the question "What causes good visibility?" and the following answer choices: - permineralization - focusing a lens - high pressure systems - flashlights - peachleaf willow - the Great Barrier Reef - an electron microscope - windpower operated machines Now knowing that high pressure systems cause clear weather and weather Clear weather usually means good visibility, choose the best answer.

Ans:high pressure systems
You are presented with the question "What can sense pressure?" and the following answer choices: - thermometers - pressure cookers - sharks - fur seals - nerves - animals - humans - skin cells Now knowing that touch is the ability to sense pressure and nerve damage that causes a reduction in the ability to feel touch or pain is very dangerous, choose the best answer.
nerves