Everyday Science

A pulsar is a rapidly spinning neutron star which emits:

Options:

• A. A blinding light when it aligns with the planets
• B. Radio waves detectable from Earth
• C. A gravitational pull which attracts high energy dust particles
• D. Enough energy to power itself indefinitely

View Answer

B. Radio waves detectable from Earth

During a total solar eclipse the rate of Photosynthesis___________?

Options:

• A. Increase
• B. Decrease
• C. Remain Constant
• D. None of them

View Answer

B. Decrease

Select the arrangement of electromagnetic radiation which starts with the lowest energy and increases to greatest energy?

Options:

• A. radio, visible, infrared, ultraviolet, x-ray, gamma ray
• B. radio, infrared, visible, x-ray, gamma ray, ultraviolet
• C. visible, radio, infrared, ultraviolet, x-ray, gamma ray
• D. radio, infrared, visible, ultraviolet, x-ray, gamma ray

View Answer

D. radio, infrared, visible, ultraviolet, x-ray, gamma ray

Which of these is not a Metamorphic rock?

Options:

• A. Quartzite
• B. Slate
• C. Gneiss
• D. Schist

View Answer

E. Diorite

Which pollutant from motor car exhaust causes mental disease _____?

Options:

• A. Carbon dioxide
• B. Lead
• C.
• D. Mercury

View Answer

B. Lead

What is the name of the central part of the earth?

Options:

• A. Mantle
• B. Core
• C. Crust
• D. None of the above

View Answer

B. Core

Study of the Universe is known as___________?

Options:

• A. Sociology
• B. Cosmology
• C. Universology
• D. Petology

View Answer

B. Cosmology

Deuterium differs from Hydrogen in having:

Options:

• A. Different atomic number but same atomic weight
• B. Different atomic number and different atomic weight
• C. Same atomic number and different atomic weight
• D. None

View Answer

C. Same atomic number and different atomic weight

It is a secondary plant nutrient?

Options:

• A. Nitrogen
• B. Phosphorus
• C. Sulphur
• D. none

View Answer

C. Sulphur

The sky appears blue because the earth

Options:

• A. Scatters blue light
• B. Reflects blue light
• C. Transmits blue light
• D. Has actual blue cover

View Answer

A. Scatters blue light