What is Earth's annual motion around the sun called?
a. month
b. revolution
c. rotation
d. seasons

Why does an atom have no net electric charge?

A. Its subatomic particles carry no electric charges.

B. The positively charged protons cancel out the negatively charged neutrons.

C. Tine positively charged neutrons cancel out the negatively charged electrons.

D. The positively charged protons cancel out the negatively charged electrons.

What is the difference between a conductor and an insulator?

focal length of lens depends on?

(a)refractive index (b)radius of the surface(c)colour of the light(d)all of these

Describe how electromagnetic waves transfer radiant energy to matter?

An airplane starting from rest at one end of a runway accelerates uniformly at 4.0 m/s² for 15 s before takeoff.

(a) What is its speed of takeoff?

(b) What is the distance traveled by the plane before takeoff?

The amount of matter an object contains is called.

The amount of matter an object contains is called ______.

The amount of matter an object contains is called ________.

The amount of matter an object contains is called _______.

How do temperature and pressure change as you go deeper into Earth?

How many Moons would fit across the diameter of the Sun?

How many Moons would fit across the diameter of the Sun?

How many Moons would fit across the diameter of the Sun?

You are studying an enzyme that has a catalytic efficiency (Kcat/Km) of 3 x 106 M-1 s-1. Knowing that the Km = 6.2 µM and how much enzyme did you use to obtain a maximum velocity of 3876 µM min-1 ?

Why is tobacco addictive? Explain the physiological and psychological aspects of tobacco dependence. (Minimum 2 paragraph) please post proper grammar. this is a psychology question it not in drop down list

Explain why metabolic transformations (e.g. glucose + 6 O2 Ã 6 CO2 + 6H20) occur through multiple reactions instead of a single reaction.

After exposure to a bioaccumulating toxin for long period of time, which type of organism would you expect to have the highest toxin concentration?

Fish

Zooplankton

Phytoplankton

All these would have about the same toxin concentration.