Which is not a biotic factor in the environment?

What is the Si unit for luminous intensity?

Which of the following is an example of solid dissolved in another solid?

He is the scientist who created his own compound microscope.

Which type of heat transfer causes sunburn?

Which of the following gases is the most abundant in the atmosphere?

What do you call the moon phase wherein you can observe the entire face of the moon?

Which asexual reproduction shows regeneration?

What structure is absent in animal cell?

Which of the ff. does not undergo acceleration?

What do you call the boundary between the troposphere and the stratosphere?

The vibration of particles of a transverse wave move in a direction.

How would the ff. stages in sexual be arranged in the proper order?

1. Fertilization

2. Zygote

3. Meiosis

A Which type of solution is most likely to crystallize or solidify?

What do petroleum, natural gas and coal have in common?

Which of the following is a diatomic molecules?

The substance changed red litmus to blue litmus, what was the nature of the substance.

Which of the following is an example of single celled organism?

Which of the protest caused malaria when it is transmitted by the bite of the female Anopheles mosquito?

During which day of the year will the North Pole experience 24 hrs. of darkness while the South Pole experience 24 hrs. of daylight?

During lunar eclipse, which alignment is the correct sequence?

Which of the following is the first synthetic metal?

Oceanic zone where the ocean meets land, sometimes it is submerged and sometimes exposed as the waves and tides come in.

This refers to the smaller, inner and darker shadow created by the object that blocks the light coming from the sun.