How do whales bats and dolphins use echolocation?

A To scare away predators

B To attract mates

C To orient them selves and find food

D To tell animals of there species where they are

Technician A says that a waste spark ignition system fires two spark plugs at the same time. Technician B says that the waste spark ignition system uses ignition coils connected to companion cylinders. Which technician is correct? a.

after the car leaves the platform, gravity causes it to accelerate downward at a rate of 9.8 m/s2. what is the gravitational force on the car?

Which planet has completed less than one orbit of the sun in the last 100 years?

What is nuclear Fission and what would happen if the government decided to use it?

A wagon is accelerating down a hill. Which of the following statements are true? A. As the wagon approaches the bottom of the hill, the potential energy decreases and the kinetic energy increases. B.

A certain gas is present in a 15.0 l cylinder at 2.0 atm pressure. if the pressure is increased to 4.0 atm the volume of the gas decreases to 7.5 l.

Choose all the answers that apply. To qualify as a planet, a celestial object must: have an irregular shape revolve around the sun orbit in a clear area have enough gravity to have a spherical shape have a satellite

Oxygen makes up the largest part of living cells at 65%. What is the percentage of the second-most abundant element in living cells?

Acceleration is defined as the rate of change for which of the following? A. time B. velocity C. position D. displacement

What are 3 characteristics of a tornado?