Which is related to air pollution in Mexico City? A. burning fossil fuels

B. using hydropower

C. collecting natural gas

D. using biofuels

Answers

Answer 1

Answer: A. Burning fossil fuels

Answer 2

Answer: Burning fossol fuels. Why? Because, when these fuels are burned, it sends pollution into the air, polluting the area around it,

Related Questions

The statement that "The universe is the same everywhere and does not change over time" is known as _____.a. the cosmological principle b. the perfect cosmological principle c. the oscillating universe theory d. the steady state theory
A material that can easily flow is called aa. fluid.b. solid.c. buoyant force.d. hydraulic material.
What would cause the pressure in a sealed container of gas to increase?a. The temperature increases. b. The temperature decreases. c. Gas particles are removed. d. Nothing would change the pressure. Please select the best answer from the choices provided A B C D
What's a solution that feels slippery
What information in the MSDS would be most important to know at the end of an experiment?

If a car travels 30.0 mi. north for 30.0 min., 50.0 mi. east for 1.00 hour, and 30.0 mi. south for 30.0 min., what is the average speed of the car over the total trip

Answers

Speed = (total distance covered) / (time to cover the distance) .

The direction at any time during the trip doesn't matter.

This car traveled (30mi + 50mi + 30mi) = 110 miles .

The trip took (30min + 60min + 30min) = 120 minutes

The average speed for the trip was

   (110 miles) / (120 minutes)

=    (110 miles) / (2 hours)

=    55 miles/hour .

Answer:

the answer is 55 mph

Explanation:

hope this helped

a tuna fish is streamlined to reduce friction which describes the type of of friction the fish must overcome

Answers

A tuna fish is streamlined to reduce friction which describes the type of of friction the fish must overcome drag force. Drag force affects the fall of a tuna fish because the area of a body has an increase in surface area and hinders the flow of the molecules around it thus increasing the drag force.

If velocity decreases, mass increases or decreases?

Answers

If the velocity decreases, increases. This situation is based about the momentum of a body where it is equal to mass times velocity. Velocity is inversely proportional to mass. That is why mass increases if velocity decreases.

what is the force of gravity between a 1000000000 kg asteroid and the earth when the asteroid is 3000000 m away from the earth?

Answers

Mass of the Earth = 5.972 x 10²⁴ kg
Mass of the asteroid = 1 x 10⁹ kg
Separation distance = 3 x 10⁶ m (between the Earth's center and the asteroid's center)

Gravitational force between two masses =

(6.67 x 10⁻¹¹ nt-m²/kg²) · m₁ · m₂ / (distance)²

= (6.67 x 10⁻¹¹ nt-m²/kg²) · (5.972 x 10²⁴ kg) · (1 x 10⁹ kg) / (3 x 10⁶ m)²

= (6.67 · 5.972 / 9) x 10¹⁰ · (nt · m² · kg · kg / kg² · m²)

   = 13.28 x 10¹⁰ newtons

   =    132.8 Giga-newtons .

   (about 14,926,763 tons)

Europa, a satellite of Jupiter, is believed to have an ocean of liquid water (with the possibility of life) beneath its icy surface. Europa is 3130 km in diameter and has a mass of 4.78×10²² kg. In the future, we will surely want to send astronauts to investigate Europa.In planning such a future mission, what is the fastest that such an astronaut could walk on the surface of Europa if her legs are 0.960 m long?