19. Antara berikut manakah simbol bagi ciri pandang darat fizikal dalam peta lakar?
I
III
.
II
IV
A. I dan II
B. I dan IV
C. II dan III
D. III dan IV​

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

In the diagram below dab and dac are adjacent angles

Which of the following is a measure of the amount of light a star directly emits? a. luminosity b. wavelength c. brightness d. intensity