this requires biology too

1. You shine a light on a glass cube at an angle with respect to the normal that is below the critical angle. What do you expect to see? Reflection only Refraction only Both reflection and refraction Neither reflection nor refraction 2. You find two pistons connected via a hydraulic system. You push down on the smaller piston with a certain amount of force. The smaller piston has half the surface area as the larger one. What would be the corresponding force exerted by the larger piston? Zero force will be exerted Half of the original force The same as the original force Twice that of the original force 3. You are trying to maximize the power emitted by a resistor that is connected directly to a 5V battery. Which resistor should you choose? The one with the highest resistance The one with the lowest resistancel All resistors will produce the same amount of power when connected in this circuit No resistors are needed to produce power 4. Carbon-14 has a half-life of 5730 years. After 17190 years, how much of the original Carbon-14 would remain in the sample? 50.0% 25.0% 33.3% 12.5% 5. Compare the typical farmland that cover Southern Ontario with the pre-existing temperate forest biome, which of the following statement is correct? Biodiversity has increased Biodiversity has stayed the same Biodiversity has decreased We would require a detailed ecological study to determine the final answer 6. If light is traveling through a material with a refractive index of 1.77, what would be its speed inside the material? 3.00 x 10~8 m/'s 2.54 x 10*8 m/'s 1.77 x 10^8 m/'s 1.69 x 10*8 m/s 7. You see a beam of light originating in air (n = 1) enter water (n = 1.33) at an angle of 42 degrees to the normal. What would be the resulting angle of the refracted light beam in water? Light beam will not pass into water Resulting angle will be less than 42 degrees Resulting angle will remain 42 degrees Resulting angle will be greater than 42 degrees B. Where would you expect to find the highest level of biodiversity in the ocean? Photic zone Aphotic zone Abyssal zone Hadalpelagic zone