Where in a river would you find fish that are adapted to low light and low oxygen levels?

at the source

in the midriver

near the mouth

No place in the river is characterized like this.

Two trains are traveling side-by-side along parallel, straight tracks at the same speed. In a time t, train A doubles its speed. In the same time train B increases its speed by a factor of 5.42.

What part do tiny, solid particles in the atmosphere play in cloud formation?

What is the average speed of a car that traveled 300.0 miles in 5.5 hours

What values are equal to zero when an object is not moving

How do you balance this equation Mg + O2 = MgO

Two railroad cars, each of mass 6500 kg and traveling 80 km/h in opposite directions, collide head-on and come to rest. how much thermal energy is produced in this collision?

What is a result of using a machine?

A boy rides motorbike with velocity of 20 m/s He accelerates his motorbike to a velocity of 30 m/s for 5 second. Calculate the acceleration produced in the motorbike. [Ams 2ms

How is a star's emission spectrum used to study stars?

A 52.0 kg skateboarder does a trick on a half-pipe. During the trick, he reaches a speed of 8.90 m/s. The radius of the half-pipe ramp is 3.00 meters. What is the minimum centripetal force necessary to keep the skater on the ramp?