The solar system comprises

A. the sun,earth and pluto

B. the sun,earth and moon

C. the sun and its nine planets

D. the sun and the earth

The angle of difference formed between the true North and magnetic North is known as

A. magnetic declination

B. magnetic diferentiation

C. magnetic valuation

D. magnetic devaluation

If the time in town X on longitude 15⁰E is 1.00pm on Saturday. What will be the time in town Y on longitude 75⁰W?

A. 11.00 am on saturday

B. 9.00 pm on saturday

C. 6.00 pm on saturday

D. 7.00 am on saturday

The mineral contents of the upper part of the earth's crust are collectively called the sial because it is composed mainly of

A. silica and olivine

B. alumina and olivine

C. silica and alumina

D. alumina and phosphate

The lowest layer of the atmosphere is the

A. startosphere

B. troposphere

C. thermosphere

D. exosphere

Which of the following is the most abundant in total volume within the atmosphere?

A. hydrogen

B. argon

C. nitrogen

D. carbondioxide

A rock through which water cannot easily pass is termed

A. permeable

B. porous

C. sedimentary

D. impermeable