Which of these is a biotic factor?

A) topography

B) soil

C) air

D) bacteria

What step of the rock cycle happens as the sea stacks are broken down

Two colours of light which mix to make white light are called a) primary colours b) secondry colous c) complementary colours d) dye

The concentration of carbon monoxide in an urban apartment is 48μg/m3. What mass of carbon monoxide in grams is present in a room measuring 10.6ft*14.8ft*20.5ft?

Fill in the blank with the correct response. Light striking a mirror at a 45° angle will be reflected at a a0

Arrange the following in order of their appearance in the life cycle of a star: white dwarf, red giant, main sequence star. Explain your answer

Resistance or opposite to a force refers to a

In tae-kwon-do, a hand is slammed down onto a target at a speed of 10.5 m/s and comes to a stop during the 2.13 ms collision. Assume that during the impact the hand is independent of the arm and has a mass of 0.400 kg.

If you looked at the frequently spectrums of two friends saying the word dog, would they look the same or different ?

Which of the following atoms has the smallest radius? The Periodic Table

When do centromeres split