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What do red lines in rocks indicate about the biosphere? (1 point O Volcanic action has damaged the biosphere. O Carbon dioxide is being produced by the biosphere. O Oxygen is being produced by the biosphere. O Continental drift affected the biosphere.

Earth Science Unit Test 2 of 182 of 18 Items Question Use the image to answer the question. An illustration shows two irregularly shaped objects side by side. Each is separated into six layers. The descriptions of the layers from top to bottom are as foll...

In 3–5 sentences explain how the evolution of photosynthetic organisms led to a drastic change in Earth’s atmosphere and oceans. What evidence do we have that this event took place? How did it affect the biosphere?(4 points)

When two charged particles are moving toward each other, their velocities decrease until they eventually come to a stop. What happens afterward? (1 point) They accelerate in opposite directions. They bond and accelerate together. They accelerate toward ea...

Which of the following factors would decrease the magnetic field strength of an electromagnet? (1 point) increasing the distances between the turns of the coil O using an iron core or nail increasing the number of turns in the coil of wire increasing the...

Use the ray diagram for a lens to answer the question. focal length focal length focus focus Which of these best describes the type of lens shown in the ray diagram? (1 point) It shows a convex lens. For this type of lens, the image position depends on th...

Which combination of frequencies would produce the lowest beat frequency? (1 point) O 10 Hz and 15 Hz 10 Hz and 20 Hz 500 Hz and 600 Hz O 500 Hz and 501 Hz

Which statement regarding sound traveling in air is correct? (1 point) The frequency of a sound does O not affect the speed at which it travels. A wave with a shorter wavelength is always faster than one with a longer wavelength. A loud sound travels fast...

Scientists use radiometric dating to determine the exact age of rocks. What might scientists hypothesize about the natural structure shown in the image? (1 point) Responses The lowest layer on the structure will be the oldest, while the highest layer will...

A bar magnet is held in place while another bar magnet is placed near it. The second bar magnet spins around and attaches to the first magnet on one end. Which statement is correct about the energy stored in the magnetic field? (1 point) The increase in t...

What happens when thermal energy is applied to water? (1 point) Its molecules lose kinetic energy. Its molecules gain kinetic energy. Its molecules gain potential energy. The water creates steam as soon as thermal energy is applied.

How does the structure of atoms in a substance determine the substance's conductivity? (1 point) If an atom's nucleus is O positively charged, the substance is a good conductor. If an atom's outer shell of electrons is loosely bound to the nucleus, the su...

What happens to sound waves from an object as it moves toward you? (1 point) The pitch gets lower because of an increase in wavelength. The pitch gets higher because of an increase in wavelength. The pitch gets higher because of an increase in frequency....

A sound has a higher pitch than a bell. Which quantity must also be higher in this sound than in the bell? (1 point) O frequency wavelength amplitude speed

Which statement about the effect of temperature on the speed of sound is correct? (1 point) Changes in temperature have O no effect on the speed of sound. As temperature increases, the speed of sound increases because molecules in the medium collide more...

Which forms of electromagnetic radiation are arranged in order of increasing energy? (1 point) gamma rays, ultraviolet, microwaves, infrared microwaves, infrared, ultraviolet, gamma rays infrared, gamma rays, microwaves, ultraviolet microwaves, ultraviole...

What is the energy released during cellular respiration used for? (1 point) it is released to the environment to create more glucose O cellular functions photosynthesis