Which of these processes involve separation of grains?

A) Tilling

B) burrowing action of earthworm

C) Levelling

D) Both a nd b

Which condition will cause a reaction to occur? Check all that apply. Particles and molecules must collide. Collisions must be energetic enough to overcome the activation barrier. Collisions must be properly oriented for the relevant parts to react.

A cannonball made of iron has a volume of 1115 cm^3. If iron has a density of 7.86g/cm^3, what is the mass in grams of the cannonball? M=V x D

Which of the following is an example of a solution? Flour and water. Sand and water. Or salt and water.

Why do land plants need to conserve water

When vaccinating, a virus is actually injected into the body. True or False

A localized group of organisms that belong to the same species is called a A) biosystem. B) community. C) population. D) ecosystem. E) family.

What is the scientific term for toads and frogs?

A pencil measures 18 cm long. How many millimeters long is the pencil?

At the complete end of cellular respiration, how many molecules of ATP are produced? ces RAMS A. 38 B. 26 C. 15 D. 34

Which of these could define a hypothesis